Home / 11,237.28-15,506.28-6,520.65

Finding the Fourth Proportional to 11,237.28, 15,506.28 and 6,520.65

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Solution

The fourth proportional to 11,237.28, 15,506.28 and 6,520.65 is: 8,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.28 : 15,506.28 = 6,520.65 : x
  2. Step 2: Convert to fraction form
    11,237.28/15,506.28 = 6,520.65/x
  3. Step 3: Cross multiply
    11,237.28x = 15,506.28 × 6,520.65
  4. Step 4: Simplify right side
    11,237.28x = 101,111,024.68
  5. Step 5: Solve for x
    x = 101,111,024.68/11,237.28
  6. Step 6: Final answer
    x = 8,997.82

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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.