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Finding the Fourth Proportional to 15,053.52, 20,775.60 and 8,765.88

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Solution

The fourth proportional to 15,053.52, 20,775.60 and 8,765.88 is: 12,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.52 : 20,775.60 = 8,765.88 : x
  2. Step 2: Convert to fraction form
    15,053.52/20,775.60 = 8,765.88/x
  3. Step 3: Cross multiply
    15,053.52x = 20,775.60 × 8,765.88
  4. Step 4: Simplify right side
    15,053.52x = 182,116,416.53
  5. Step 5: Solve for x
    x = 182,116,416.53/15,053.52
  6. Step 6: Final answer
    x = 12,097.93

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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.