Home / 15,475.17-21,307.92-12,085.87

Finding the Fourth Proportional to 15,475.17, 21,307.92 and 12,085.87

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Solution

The fourth proportional to 15,475.17, 21,307.92 and 12,085.87 is: 16,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.17 : 21,307.92 = 12,085.87 : x
  2. Step 2: Convert to fraction form
    15,475.17/21,307.92 = 12,085.87/x
  3. Step 3: Cross multiply
    15,475.17x = 21,307.92 × 12,085.87
  4. Step 4: Simplify right side
    15,475.17x = 257,524,740.57
  5. Step 5: Solve for x
    x = 257,524,740.57/15,475.17
  6. Step 6: Final answer
    x = 16,641.16

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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.