Home / 7,988.06-11,020.38-5,337.20

Finding the Fourth Proportional to 7,988.06, 11,020.38 and 5,337.20

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Solution

The fourth proportional to 7,988.06, 11,020.38 and 5,337.20 is: 7,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.06 : 11,020.38 = 5,337.20 : x
  2. Step 2: Convert to fraction form
    7,988.06/11,020.38 = 5,337.20/x
  3. Step 3: Cross multiply
    7,988.06x = 11,020.38 × 5,337.20
  4. Step 4: Simplify right side
    7,988.06x = 58,817,972.14
  5. Step 5: Solve for x
    x = 58,817,972.14/7,988.06
  6. Step 6: Final answer
    x = 7,363.24

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1.5x scale

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.