Home / 13,449.28-20,178.60-4,686.52

Finding the Fourth Proportional to 13,449.28, 20,178.60 and 4,686.52

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Solution

The fourth proportional to 13,449.28, 20,178.60 and 4,686.52 is: 7,031.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.28 : 20,178.60 = 4,686.52 : x
  2. Step 2: Convert to fraction form
    13,449.28/20,178.60 = 4,686.52/x
  3. Step 3: Cross multiply
    13,449.28x = 20,178.60 × 4,686.52
  4. Step 4: Simplify right side
    13,449.28x = 94,567,412.47
  5. Step 5: Solve for x
    x = 94,567,412.47/13,449.28
  6. Step 6: Final answer
    x = 7,031.41

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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.