Home / 13,612.96-20,416.65-4,251.70

Finding the Fourth Proportional to 13,612.96, 20,416.65 and 4,251.70

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Solution

The fourth proportional to 13,612.96, 20,416.65 and 4,251.70 is: 6,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.96 : 20,416.65 = 4,251.70 : x
  2. Step 2: Convert to fraction form
    13,612.96/20,416.65 = 4,251.70/x
  3. Step 3: Cross multiply
    13,612.96x = 20,416.65 × 4,251.70
  4. Step 4: Simplify right side
    13,612.96x = 86,805,470.81
  5. Step 5: Solve for x
    x = 86,805,470.81/13,612.96
  6. Step 6: Final answer
    x = 6,376.68

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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.