Home / 11,045.14-15,240.45-7,318.42

Finding the Fourth Proportional to 11,045.14, 15,240.45 and 7,318.42

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Solution

The fourth proportional to 11,045.14, 15,240.45 and 7,318.42 is: 10,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.14 : 15,240.45 = 7,318.42 : x
  2. Step 2: Convert to fraction form
    11,045.14/15,240.45 = 7,318.42/x
  3. Step 3: Cross multiply
    11,045.14x = 15,240.45 × 7,318.42
  4. Step 4: Simplify right side
    11,045.14x = 111,536,014.09
  5. Step 5: Solve for x
    x = 111,536,014.09/11,045.14
  6. Step 6: Final answer
    x = 10,098.20

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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.