Home / 10,391.59-14,337.70-6,613.21

Finding the Fourth Proportional to 10,391.59, 14,337.70 and 6,613.21

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Solution

The fourth proportional to 10,391.59, 14,337.70 and 6,613.21 is: 9,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.59 : 14,337.70 = 6,613.21 : x
  2. Step 2: Convert to fraction form
    10,391.59/14,337.70 = 6,613.21/x
  3. Step 3: Cross multiply
    10,391.59x = 14,337.70 × 6,613.21
  4. Step 4: Simplify right side
    10,391.59x = 94,818,221.02
  5. Step 5: Solve for x
    x = 94,818,221.02/10,391.59
  6. Step 6: Final answer
    x = 9,124.52

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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.