Home / 13,352.97-18,428.48-7,687.93

Finding the Fourth Proportional to 13,352.97, 18,428.48 and 7,687.93

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Solution

The fourth proportional to 13,352.97, 18,428.48 and 7,687.93 is: 10,610.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.97 : 18,428.48 = 7,687.93 : x
  2. Step 2: Convert to fraction form
    13,352.97/18,428.48 = 7,687.93/x
  3. Step 3: Cross multiply
    13,352.97x = 18,428.48 × 7,687.93
  4. Step 4: Simplify right side
    13,352.97x = 141,676,864.25
  5. Step 5: Solve for x
    x = 141,676,864.25/13,352.97
  6. Step 6: Final answer
    x = 10,610.14

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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.