Home / 13,053.23-18,013.19-7,387.87

Finding the Fourth Proportional to 13,053.23, 18,013.19 and 7,387.87

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Solution

The fourth proportional to 13,053.23, 18,013.19 and 7,387.87 is: 10,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.23 : 18,013.19 = 7,387.87 : x
  2. Step 2: Convert to fraction form
    13,053.23/18,013.19 = 7,387.87/x
  3. Step 3: Cross multiply
    13,053.23x = 18,013.19 × 7,387.87
  4. Step 4: Simplify right side
    13,053.23x = 133,079,106.01
  5. Step 5: Solve for x
    x = 133,079,106.01/13,053.23
  6. Step 6: Final answer
    x = 10,195.11

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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.