Home / 16,975.28-23,428.70-9,901.71

Finding the Fourth Proportional to 16,975.28, 23,428.70 and 9,901.71

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Solution

The fourth proportional to 16,975.28, 23,428.70 and 9,901.71 is: 13,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,975.28 : 23,428.70 = 9,901.71 : x
  2. Step 2: Convert to fraction form
    16,975.28/23,428.70 = 9,901.71/x
  3. Step 3: Cross multiply
    16,975.28x = 23,428.70 × 9,901.71
  4. Step 4: Simplify right side
    16,975.28x = 231,984,143.57
  5. Step 5: Solve for x
    x = 231,984,143.57/16,975.28
  6. Step 6: Final answer
    x = 13,666.00

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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.