Home / 15,009.12-22,516.91-4,479.21

Finding the Fourth Proportional to 15,009.12, 22,516.91 and 4,479.21

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Solution

The fourth proportional to 15,009.12, 22,516.91 and 4,479.21 is: 6,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.12 : 22,516.91 = 4,479.21 : x
  2. Step 2: Convert to fraction form
    15,009.12/22,516.91 = 4,479.21/x
  3. Step 3: Cross multiply
    15,009.12x = 22,516.91 × 4,479.21
  4. Step 4: Simplify right side
    15,009.12x = 100,857,946.05
  5. Step 5: Solve for x
    x = 100,857,946.05/15,009.12
  6. Step 6: Final answer
    x = 6,719.78

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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.