Home / 8,977.05-12,386.25-5,439.51

Finding the Fourth Proportional to 8,977.05, 12,386.25 and 5,439.51

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Solution

The fourth proportional to 8,977.05, 12,386.25 and 5,439.51 is: 7,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.05 : 12,386.25 = 5,439.51 : x
  2. Step 2: Convert to fraction form
    8,977.05/12,386.25 = 5,439.51/x
  3. Step 3: Cross multiply
    8,977.05x = 12,386.25 × 5,439.51
  4. Step 4: Simplify right side
    8,977.05x = 67,375,130.74
  5. Step 5: Solve for x
    x = 67,375,130.74/8,977.05
  6. Step 6: Final answer
    x = 7,505.26

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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.