Home / 7,972.66-11,002.53-4,987.54

Finding the Fourth Proportional to 7,972.66, 11,002.53 and 4,987.54

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Solution

The fourth proportional to 7,972.66, 11,002.53 and 4,987.54 is: 6,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.66 : 11,002.53 = 4,987.54 : x
  2. Step 2: Convert to fraction form
    7,972.66/11,002.53 = 4,987.54/x
  3. Step 3: Cross multiply
    7,972.66x = 11,002.53 × 4,987.54
  4. Step 4: Simplify right side
    7,972.66x = 54,875,558.48
  5. Step 5: Solve for x
    x = 54,875,558.48/7,972.66
  6. Step 6: Final answer
    x = 6,882.97

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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.