Home / 14,988.13-20,679.48-8,614.39

Finding the Fourth Proportional to 14,988.13, 20,679.48 and 8,614.39

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Solution

The fourth proportional to 14,988.13, 20,679.48 and 8,614.39 is: 11,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.13 : 20,679.48 = 8,614.39 : x
  2. Step 2: Convert to fraction form
    14,988.13/20,679.48 = 8,614.39/x
  3. Step 3: Cross multiply
    14,988.13x = 20,679.48 × 8,614.39
  4. Step 4: Simplify right side
    14,988.13x = 178,141,105.72
  5. Step 5: Solve for x
    x = 178,141,105.72/14,988.13
  6. Step 6: Final answer
    x = 11,885.48

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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.