Home / 9,270.24-13,908.60-7,987.20

Finding the Fourth Proportional to 9,270.24, 13,908.60 and 7,987.20

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Solution

The fourth proportional to 9,270.24, 13,908.60 and 7,987.20 is: 11,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.24 : 13,908.60 = 7,987.20 : x
  2. Step 2: Convert to fraction form
    9,270.24/13,908.60 = 7,987.20/x
  3. Step 3: Cross multiply
    9,270.24x = 13,908.60 × 7,987.20
  4. Step 4: Simplify right side
    9,270.24x = 111,090,769.92
  5. Step 5: Solve for x
    x = 111,090,769.92/9,270.24
  6. Step 6: Final answer
    x = 11,983.59

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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.