Home / 11,088.16-15,301.94-6,612.78

Finding the Fourth Proportional to 11,088.16, 15,301.94 and 6,612.78

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Solution

The fourth proportional to 11,088.16, 15,301.94 and 6,612.78 is: 9,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088.16 : 15,301.94 = 6,612.78 : x
  2. Step 2: Convert to fraction form
    11,088.16/15,301.94 = 6,612.78/x
  3. Step 3: Cross multiply
    11,088.16x = 15,301.94 × 6,612.78
  4. Step 4: Simplify right side
    11,088.16x = 101,188,362.79
  5. Step 5: Solve for x
    x = 101,188,362.79/11,088.16
  6. Step 6: Final answer
    x = 9,125.80

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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.