Home / 10,432.16-15,649.20-3,508.64

Finding the Fourth Proportional to 10,432.16, 15,649.20 and 3,508.64

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Solution

The fourth proportional to 10,432.16, 15,649.20 and 3,508.64 is: 5,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,432.16 : 15,649.20 = 3,508.64 : x
  2. Step 2: Convert to fraction form
    10,432.16/15,649.20 = 3,508.64/x
  3. Step 3: Cross multiply
    10,432.16x = 15,649.20 × 3,508.64
  4. Step 4: Simplify right side
    10,432.16x = 54,907,409.09
  5. Step 5: Solve for x
    x = 54,907,409.09/10,432.16
  6. Step 6: Final answer
    x = 5,263.28

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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.