Home / 9,327.30-13,988.65-5,815.50

Finding the Fourth Proportional to 9,327.30, 13,988.65 and 5,815.50

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Solution

The fourth proportional to 9,327.30, 13,988.65 and 5,815.50 is: 8,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.30 : 13,988.65 = 5,815.50 : x
  2. Step 2: Convert to fraction form
    9,327.30/13,988.65 = 5,815.50/x
  3. Step 3: Cross multiply
    9,327.30x = 13,988.65 × 5,815.50
  4. Step 4: Simplify right side
    9,327.30x = 81,350,979.54
  5. Step 5: Solve for x
    x = 81,350,979.54/9,327.30
  6. Step 6: Final answer
    x = 8,721.81

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1.5x scale

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.