Home / 11,151.65-15,389.40-6,372.22

Finding the Fourth Proportional to 11,151.65, 15,389.40 and 6,372.22

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Solution

The fourth proportional to 11,151.65, 15,389.40 and 6,372.22 is: 8,793.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.65 : 15,389.40 = 6,372.22 : x
  2. Step 2: Convert to fraction form
    11,151.65/15,389.40 = 6,372.22/x
  3. Step 3: Cross multiply
    11,151.65x = 15,389.40 × 6,372.22
  4. Step 4: Simplify right side
    11,151.65x = 98,064,642.47
  5. Step 5: Solve for x
    x = 98,064,642.47/11,151.65
  6. Step 6: Final answer
    x = 8,793.73

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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.