Home / 14,327.68-19,772.70-8,358.40

Finding the Fourth Proportional to 14,327.68, 19,772.70 and 8,358.40

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Solution

The fourth proportional to 14,327.68, 19,772.70 and 8,358.40 is: 11,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,327.68 : 19,772.70 = 8,358.40 : x
  2. Step 2: Convert to fraction form
    14,327.68/19,772.70 = 8,358.40/x
  3. Step 3: Cross multiply
    14,327.68x = 19,772.70 × 8,358.40
  4. Step 4: Simplify right side
    14,327.68x = 165,268,135.68
  5. Step 5: Solve for x
    x = 165,268,135.68/14,327.68
  6. Step 6: Final answer
    x = 11,534.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.