Home / 15,613.59-21,548.73-8,901.63

Finding the Fourth Proportional to 15,613.59, 21,548.73 and 8,901.63

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Solution

The fourth proportional to 15,613.59, 21,548.73 and 8,901.63 is: 12,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.59 : 21,548.73 = 8,901.63 : x
  2. Step 2: Convert to fraction form
    15,613.59/21,548.73 = 8,901.63/x
  3. Step 3: Cross multiply
    15,613.59x = 21,548.73 × 8,901.63
  4. Step 4: Simplify right side
    15,613.59x = 191,818,821.43
  5. Step 5: Solve for x
    x = 191,818,821.43/15,613.59
  6. Step 6: Final answer
    x = 12,285.38

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Half scale
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Double scale
Find fourth proportional to 15,614.59, 21,550.11 and 8,902.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.