Home / 8,829.90-13,240.56-5,133.20

Finding the Fourth Proportional to 8,829.90, 13,240.56 and 5,133.20

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Solution

The fourth proportional to 8,829.90, 13,240.56 and 5,133.20 is: 7,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.90 : 13,240.56 = 5,133.20 : x
  2. Step 2: Convert to fraction form
    8,829.90/13,240.56 = 5,133.20/x
  3. Step 3: Cross multiply
    8,829.90x = 13,240.56 × 5,133.20
  4. Step 4: Simplify right side
    8,829.90x = 67,966,442.59
  5. Step 5: Solve for x
    x = 67,966,442.59/8,829.90
  6. Step 6: Final answer
    x = 7,697.31

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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.