Home / 15,650.59-21,597.52-9,680.69

Finding the Fourth Proportional to 15,650.59, 21,597.52 and 9,680.69

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Solution

The fourth proportional to 15,650.59, 21,597.52 and 9,680.69 is: 13,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.59 : 21,597.52 = 9,680.69 : x
  2. Step 2: Convert to fraction form
    15,650.59/21,597.52 = 9,680.69/x
  3. Step 3: Cross multiply
    15,650.59x = 21,597.52 × 9,680.69
  4. Step 4: Simplify right side
    15,650.59x = 209,078,895.89
  5. Step 5: Solve for x
    x = 209,078,895.89/15,650.59
  6. Step 6: Final answer
    x = 13,359.17

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Half scale
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Double scale
Find fourth proportional to 15,651.59, 21,598.90 and 9,681.69
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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.