Home / 7,115.56-10,658.46-5,721.36

Finding the Fourth Proportional to 7,115.56, 10,658.46 and 5,721.36

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Solution

The fourth proportional to 7,115.56, 10,658.46 and 5,721.36 is: 8,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.56 : 10,658.46 = 5,721.36 : x
  2. Step 2: Convert to fraction form
    7,115.56/10,658.46 = 5,721.36/x
  3. Step 3: Cross multiply
    7,115.56x = 10,658.46 × 5,721.36
  4. Step 4: Simplify right side
    7,115.56x = 60,980,886.71
  5. Step 5: Solve for x
    x = 60,980,886.71/7,115.56
  6. Step 6: Final answer
    x = 8,570.08

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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.