Home / 8,721.56-13,082.32-7,176.32

Finding the Fourth Proportional to 8,721.56, 13,082.32 and 7,176.32

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Solution

The fourth proportional to 8,721.56, 13,082.32 and 7,176.32 is: 10,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.56 : 13,082.32 = 7,176.32 : x
  2. Step 2: Convert to fraction form
    8,721.56/13,082.32 = 7,176.32/x
  3. Step 3: Cross multiply
    8,721.56x = 13,082.32 × 7,176.32
  4. Step 4: Simplify right side
    8,721.56x = 93,882,914.66
  5. Step 5: Solve for x
    x = 93,882,914.66/8,721.56
  6. Step 6: Final answer
    x = 10,764.46

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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.