Home / 13,432.62-20,134.45-8,503.64

Finding the Fourth Proportional to 13,432.62, 20,134.45 and 8,503.64

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Solution

The fourth proportional to 13,432.62, 20,134.45 and 8,503.64 is: 12,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.62 : 20,134.45 = 8,503.64 : x
  2. Step 2: Convert to fraction form
    13,432.62/20,134.45 = 8,503.64/x
  3. Step 3: Cross multiply
    13,432.62x = 20,134.45 × 8,503.64
  4. Step 4: Simplify right side
    13,432.62x = 171,216,114.40
  5. Step 5: Solve for x
    x = 171,216,114.40/13,432.62
  6. Step 6: Final answer
    x = 12,746.29

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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.