Home / 15,109.20-22,658.40-5,248.80

Finding the Fourth Proportional to 15,109.20, 22,658.40 and 5,248.80

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Solution

The fourth proportional to 15,109.20, 22,658.40 and 5,248.80 is: 7,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.20 : 22,658.40 = 5,248.80 : x
  2. Step 2: Convert to fraction form
    15,109.20/22,658.40 = 5,248.80/x
  3. Step 3: Cross multiply
    15,109.20x = 22,658.40 × 5,248.80
  4. Step 4: Simplify right side
    15,109.20x = 118,929,409.92
  5. Step 5: Solve for x
    x = 118,929,409.92/15,109.20
  6. Step 6: Final answer
    x = 7,871.32

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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.