Home / 15,421.80-23,132.72-9,877.76

Finding the Fourth Proportional to 15,421.80, 23,132.72 and 9,877.76

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Solution

The fourth proportional to 15,421.80, 23,132.72 and 9,877.76 is: 14,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.80 : 23,132.72 = 9,877.76 : x
  2. Step 2: Convert to fraction form
    15,421.80/23,132.72 = 9,877.76/x
  3. Step 3: Cross multiply
    15,421.80x = 23,132.72 × 9,877.76
  4. Step 4: Simplify right side
    15,421.80x = 228,499,456.31
  5. Step 5: Solve for x
    x = 228,499,456.31/15,421.80
  6. Step 6: Final answer
    x = 14,816.65

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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.