Home / 13,632.18-20,449.56-5,312.88

Finding the Fourth Proportional to 13,632.18, 20,449.56 and 5,312.88

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Solution

The fourth proportional to 13,632.18, 20,449.56 and 5,312.88 is: 7,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.18 : 20,449.56 = 5,312.88 : x
  2. Step 2: Convert to fraction form
    13,632.18/20,449.56 = 5,312.88/x
  3. Step 3: Cross multiply
    13,632.18x = 20,449.56 × 5,312.88
  4. Step 4: Simplify right side
    13,632.18x = 108,646,058.33
  5. Step 5: Solve for x
    x = 108,646,058.33/13,632.18
  6. Step 6: Final answer
    x = 7,969.82

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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.