Home / 12,338.02-18,507.03-7,141.06

Finding the Fourth Proportional to 12,338.02, 18,507.03 and 7,141.06

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Solution

The fourth proportional to 12,338.02, 18,507.03 and 7,141.06 is: 10,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.02 : 18,507.03 = 7,141.06 : x
  2. Step 2: Convert to fraction form
    12,338.02/18,507.03 = 7,141.06/x
  3. Step 3: Cross multiply
    12,338.02x = 18,507.03 × 7,141.06
  4. Step 4: Simplify right side
    12,338.02x = 132,159,811.65
  5. Step 5: Solve for x
    x = 132,159,811.65/12,338.02
  6. Step 6: Final answer
    x = 10,711.59

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Similar ratio
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1.5x scale

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.