Home / 7,681.31-11,498.38-5,600.81

Finding the Fourth Proportional to 7,681.31, 11,498.38 and 5,600.81

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Solution

The fourth proportional to 7,681.31, 11,498.38 and 5,600.81 is: 8,384.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.31 : 11,498.38 = 5,600.81 : x
  2. Step 2: Convert to fraction form
    7,681.31/11,498.38 = 5,600.81/x
  3. Step 3: Cross multiply
    7,681.31x = 11,498.38 × 5,600.81
  4. Step 4: Simplify right side
    7,681.31x = 64,400,223.68
  5. Step 5: Solve for x
    x = 64,400,223.68/7,681.31
  6. Step 6: Final answer
    x = 8,384.02

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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.