Home / 15,575.16-21,493.20-8,861.52

Finding the Fourth Proportional to 15,575.16, 21,493.20 and 8,861.52

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Solution

The fourth proportional to 15,575.16, 21,493.20 and 8,861.52 is: 12,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.16 : 21,493.20 = 8,861.52 : x
  2. Step 2: Convert to fraction form
    15,575.16/21,493.20 = 8,861.52/x
  3. Step 3: Cross multiply
    15,575.16x = 21,493.20 × 8,861.52
  4. Step 4: Simplify right side
    15,575.16x = 190,462,421.66
  5. Step 5: Solve for x
    x = 190,462,421.66/15,575.16
  6. Step 6: Final answer
    x = 12,228.60

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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.