Home / 15,565.62-21,480.54-8,492.04

Finding the Fourth Proportional to 15,565.62, 21,480.54 and 8,492.04

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Solution

The fourth proportional to 15,565.62, 21,480.54 and 8,492.04 is: 11,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.62 : 21,480.54 = 8,492.04 : x
  2. Step 2: Convert to fraction form
    15,565.62/21,480.54 = 8,492.04/x
  3. Step 3: Cross multiply
    15,565.62x = 21,480.54 × 8,492.04
  4. Step 4: Simplify right side
    15,565.62x = 182,413,604.90
  5. Step 5: Solve for x
    x = 182,413,604.90/15,565.62
  6. Step 6: Final answer
    x = 11,719.01

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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.