Home / 15,468.35-21,330.19-9,179.51

Finding the Fourth Proportional to 15,468.35, 21,330.19 and 9,179.51

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Solution

The fourth proportional to 15,468.35, 21,330.19 and 9,179.51 is: 12,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.35 : 21,330.19 = 9,179.51 : x
  2. Step 2: Convert to fraction form
    15,468.35/21,330.19 = 9,179.51/x
  3. Step 3: Cross multiply
    15,468.35x = 21,330.19 × 9,179.51
  4. Step 4: Simplify right side
    15,468.35x = 195,800,722.78
  5. Step 5: Solve for x
    x = 195,800,722.78/15,468.35
  6. Step 6: Final answer
    x = 12,658.15

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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.