Home / 13,620.88-20,432.58-5,301.52

Finding the Fourth Proportional to 13,620.88, 20,432.58 and 5,301.52

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Solution

The fourth proportional to 13,620.88, 20,432.58 and 5,301.52 is: 7,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.88 : 20,432.58 = 5,301.52 : x
  2. Step 2: Convert to fraction form
    13,620.88/20,432.58 = 5,301.52/x
  3. Step 3: Cross multiply
    13,620.88x = 20,432.58 × 5,301.52
  4. Step 4: Simplify right side
    13,620.88x = 108,323,731.52
  5. Step 5: Solve for x
    x = 108,323,731.52/13,620.88
  6. Step 6: Final answer
    x = 7,952.77

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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.