Home / 13,648.40-20,468.60-5,326.52

Finding the Fourth Proportional to 13,648.40, 20,468.60 and 5,326.52

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Solution

The fourth proportional to 13,648.40, 20,468.60 and 5,326.52 is: 7,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.40 : 20,468.60 = 5,326.52 : x
  2. Step 2: Convert to fraction form
    13,648.40/20,468.60 = 5,326.52/x
  3. Step 3: Cross multiply
    13,648.40x = 20,468.60 × 5,326.52
  4. Step 4: Simplify right side
    13,648.40x = 109,026,407.27
  5. Step 5: Solve for x
    x = 109,026,407.27/13,648.40
  6. Step 6: Final answer
    x = 7,988.22

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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.