Home / 15,294.79-21,107.01-9,244.20

Finding the Fourth Proportional to 15,294.79, 21,107.01 and 9,244.20

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Solution

The fourth proportional to 15,294.79, 21,107.01 and 9,244.20 is: 12,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.79 : 21,107.01 = 9,244.20 : x
  2. Step 2: Convert to fraction form
    15,294.79/21,107.01 = 9,244.20/x
  3. Step 3: Cross multiply
    15,294.79x = 21,107.01 × 9,244.20
  4. Step 4: Simplify right side
    15,294.79x = 195,117,535.66
  5. Step 5: Solve for x
    x = 195,117,535.66/15,294.79
  6. Step 6: Final answer
    x = 12,757.12

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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.