Home / 13,646.40-20,470.02-5,326.08

Finding the Fourth Proportional to 13,646.40, 20,470.02 and 5,326.08

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Solution

The fourth proportional to 13,646.40, 20,470.02 and 5,326.08 is: 7,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.40 : 20,470.02 = 5,326.08 : x
  2. Step 2: Convert to fraction form
    13,646.40/20,470.02 = 5,326.08/x
  3. Step 3: Cross multiply
    13,646.40x = 20,470.02 × 5,326.08
  4. Step 4: Simplify right side
    13,646.40x = 109,024,964.12
  5. Step 5: Solve for x
    x = 109,024,964.12/13,646.40
  6. Step 6: Final answer
    x = 7,989.28

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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.