Home / 13,612.02-20,412.45-4,248.90

Finding the Fourth Proportional to 13,612.02, 20,412.45 and 4,248.90

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Solution

The fourth proportional to 13,612.02, 20,412.45 and 4,248.90 is: 6,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.02 : 20,412.45 = 4,248.90 : x
  2. Step 2: Convert to fraction form
    13,612.02/20,412.45 = 4,248.90/x
  3. Step 3: Cross multiply
    13,612.02x = 20,412.45 × 4,248.90
  4. Step 4: Simplify right side
    13,612.02x = 86,730,458.81
  5. Step 5: Solve for x
    x = 86,730,458.81/13,612.02
  6. Step 6: Final answer
    x = 6,371.61

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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.