Home / 13,012.11-17,957.30-7,347.17

Finding the Fourth Proportional to 13,012.11, 17,957.30 and 7,347.17

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Solution

The fourth proportional to 13,012.11, 17,957.30 and 7,347.17 is: 10,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.11 : 17,957.30 = 7,347.17 : x
  2. Step 2: Convert to fraction form
    13,012.11/17,957.30 = 7,347.17/x
  3. Step 3: Cross multiply
    13,012.11x = 17,957.30 × 7,347.17
  4. Step 4: Simplify right side
    13,012.11x = 131,935,344.00
  5. Step 5: Solve for x
    x = 131,935,344.00/13,012.11
  6. Step 6: Final answer
    x = 10,139.43

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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.