Home / 15,575.68-21,488.91-9,200.90

Finding the Fourth Proportional to 15,575.68, 21,488.91 and 9,200.90

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Solution

The fourth proportional to 15,575.68, 21,488.91 and 9,200.90 is: 12,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.68 : 21,488.91 = 9,200.90 : x
  2. Step 2: Convert to fraction form
    15,575.68/21,488.91 = 9,200.90/x
  3. Step 3: Cross multiply
    15,575.68x = 21,488.91 × 9,200.90
  4. Step 4: Simplify right side
    15,575.68x = 197,717,312.02
  5. Step 5: Solve for x
    x = 197,717,312.02/15,575.68
  6. Step 6: Final answer
    x = 12,693.98

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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.