Home / 15,401.16-21,256.90-9,732.30

Finding the Fourth Proportional to 15,401.16, 21,256.90 and 9,732.30

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Solution

The fourth proportional to 15,401.16, 21,256.90 and 9,732.30 is: 13,432.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.16 : 21,256.90 = 9,732.30 : x
  2. Step 2: Convert to fraction form
    15,401.16/21,256.90 = 9,732.30/x
  3. Step 3: Cross multiply
    15,401.16x = 21,256.90 × 9,732.30
  4. Step 4: Simplify right side
    15,401.16x = 206,878,479.21
  5. Step 5: Solve for x
    x = 206,878,479.21/15,401.16
  6. Step 6: Final answer
    x = 13,432.66

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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.