Home / 18,750.95-28,132.58-7,666.96

Finding the Fourth Proportional to 18,750.95, 28,132.58 and 7,666.96

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Solution

The fourth proportional to 18,750.95, 28,132.58 and 7,666.96 is: 11,502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.95 : 28,132.58 = 7,666.96 : x
  2. Step 2: Convert to fraction form
    18,750.95/28,132.58 = 7,666.96/x
  3. Step 3: Cross multiply
    18,750.95x = 28,132.58 × 7,666.96
  4. Step 4: Simplify right side
    18,750.95x = 215,691,367.14
  5. Step 5: Solve for x
    x = 215,691,367.14/18,750.95
  6. Step 6: Final answer
    x = 11,502.96

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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.