Home / 15,565.52-23,315.16-12,591.20

Finding the Fourth Proportional to 15,565.52, 23,315.16 and 12,591.20

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Solution

The fourth proportional to 15,565.52, 23,315.16 and 12,591.20 is: 18,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.52 : 23,315.16 = 12,591.20 : x
  2. Step 2: Convert to fraction form
    15,565.52/23,315.16 = 12,591.20/x
  3. Step 3: Cross multiply
    15,565.52x = 23,315.16 × 12,591.20
  4. Step 4: Simplify right side
    15,565.52x = 293,565,842.59
  5. Step 5: Solve for x
    x = 293,565,842.59/15,565.52
  6. Step 6: Final answer
    x = 18,860.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.