Home / 19,690.47-29,541.57-9,166.71

Finding the Fourth Proportional to 19,690.47, 29,541.57 and 9,166.71

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Solution

The fourth proportional to 19,690.47, 29,541.57 and 9,166.71 is: 13,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.47 : 29,541.57 = 9,166.71 : x
  2. Step 2: Convert to fraction form
    19,690.47/29,541.57 = 9,166.71/x
  3. Step 3: Cross multiply
    19,690.47x = 29,541.57 × 9,166.71
  4. Step 4: Simplify right side
    19,690.47x = 270,799,005.13
  5. Step 5: Solve for x
    x = 270,799,005.13/19,690.47
  6. Step 6: Final answer
    x = 13,752.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.