Home / 11,223.16-15,487.30-6,443.85

Finding the Fourth Proportional to 11,223.16, 15,487.30 and 6,443.85

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Solution

The fourth proportional to 11,223.16, 15,487.30 and 6,443.85 is: 8,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.16 : 15,487.30 = 6,443.85 : x
  2. Step 2: Convert to fraction form
    11,223.16/15,487.30 = 6,443.85/x
  3. Step 3: Cross multiply
    11,223.16x = 15,487.30 × 6,443.85
  4. Step 4: Simplify right side
    11,223.16x = 99,797,904.24
  5. Step 5: Solve for x
    x = 99,797,904.24/11,223.16
  6. Step 6: Final answer
    x = 8,892.14

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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.