Home / 14,756.12-20,248.89-13,419.64

Finding the Fourth Proportional to 14,756.12, 20,248.89 and 13,419.64

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Solution

The fourth proportional to 14,756.12, 20,248.89 and 13,419.64 is: 18,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,756.12 : 20,248.89 = 13,419.64 : x
  2. Step 2: Convert to fraction form
    14,756.12/20,248.89 = 13,419.64/x
  3. Step 3: Cross multiply
    14,756.12x = 20,248.89 × 13,419.64
  4. Step 4: Simplify right side
    14,756.12x = 271,732,814.20
  5. Step 5: Solve for x
    x = 271,732,814.20/14,756.12
  6. Step 6: Final answer
    x = 18,414.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.