Home / 8,943.47-12,339.80-5,359.01

Finding the Fourth Proportional to 8,943.47, 12,339.80 and 5,359.01

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Solution

The fourth proportional to 8,943.47, 12,339.80 and 5,359.01 is: 7,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.47 : 12,339.80 = 5,359.01 : x
  2. Step 2: Convert to fraction form
    8,943.47/12,339.80 = 5,359.01/x
  3. Step 3: Cross multiply
    8,943.47x = 12,339.80 × 5,359.01
  4. Step 4: Simplify right side
    8,943.47x = 66,129,084.80
  5. Step 5: Solve for x
    x = 66,129,084.80/8,943.47
  6. Step 6: Final answer
    x = 7,394.12

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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.