Home / 13,669.52-18,862.14-8,005.28

Finding the Fourth Proportional to 13,669.52, 18,862.14 and 8,005.28

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Solution

The fourth proportional to 13,669.52, 18,862.14 and 8,005.28 is: 11,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.52 : 18,862.14 = 8,005.28 : x
  2. Step 2: Convert to fraction form
    13,669.52/18,862.14 = 8,005.28/x
  3. Step 3: Cross multiply
    13,669.52x = 18,862.14 × 8,005.28
  4. Step 4: Simplify right side
    13,669.52x = 150,996,712.10
  5. Step 5: Solve for x
    x = 150,996,712.10/13,669.52
  6. Step 6: Final answer
    x = 11,046.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.