Home / 10,432.08-15,628.68-8,138.16

Finding the Fourth Proportional to 10,432.08, 15,628.68 and 8,138.16

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Solution

The fourth proportional to 10,432.08, 15,628.68 and 8,138.16 is: 12,192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,432.08 : 15,628.68 = 8,138.16 : x
  2. Step 2: Convert to fraction form
    10,432.08/15,628.68 = 8,138.16/x
  3. Step 3: Cross multiply
    10,432.08x = 15,628.68 × 8,138.16
  4. Step 4: Simplify right side
    10,432.08x = 127,188,698.43
  5. Step 5: Solve for x
    x = 127,188,698.43/10,432.08
  6. Step 6: Final answer
    x = 12,192.07

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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.