Home / 16,880.20-23,294.65-9,428.20

Finding the Fourth Proportional to 16,880.20, 23,294.65 and 9,428.20

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Solution

The fourth proportional to 16,880.20, 23,294.65 and 9,428.20 is: 13,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880.20 : 23,294.65 = 9,428.20 : x
  2. Step 2: Convert to fraction form
    16,880.20/23,294.65 = 9,428.20/x
  3. Step 3: Cross multiply
    16,880.20x = 23,294.65 × 9,428.20
  4. Step 4: Simplify right side
    16,880.20x = 219,626,619.13
  5. Step 5: Solve for x
    x = 219,626,619.13/16,880.20
  6. Step 6: Final answer
    x = 13,010.90

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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.