Home / 15,449.16-21,312.67-9,073.72

Finding the Fourth Proportional to 15,449.16, 21,312.67 and 9,073.72

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Solution

The fourth proportional to 15,449.16, 21,312.67 and 9,073.72 is: 12,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449.16 : 21,312.67 = 9,073.72 : x
  2. Step 2: Convert to fraction form
    15,449.16/21,312.67 = 9,073.72/x
  3. Step 3: Cross multiply
    15,449.16x = 21,312.67 × 9,073.72
  4. Step 4: Simplify right side
    15,449.16x = 193,385,048.10
  5. Step 5: Solve for x
    x = 193,385,048.10/15,449.16
  6. Step 6: Final answer
    x = 12,517.51

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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.