Home / 15,660.52-23,478.40-7,765.75

Finding the Fourth Proportional to 15,660.52, 23,478.40 and 7,765.75

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Solution

The fourth proportional to 15,660.52, 23,478.40 and 7,765.75 is: 11,642.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.52 : 23,478.40 = 7,765.75 : x
  2. Step 2: Convert to fraction form
    15,660.52/23,478.40 = 7,765.75/x
  3. Step 3: Cross multiply
    15,660.52x = 23,478.40 × 7,765.75
  4. Step 4: Simplify right side
    15,660.52x = 182,327,384.80
  5. Step 5: Solve for x
    x = 182,327,384.80/15,660.52
  6. Step 6: Final answer
    x = 11,642.49

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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.