Home / 11,476.08-15,836.51-6,440.72

Finding the Fourth Proportional to 11,476.08, 15,836.51 and 6,440.72

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Solution

The fourth proportional to 11,476.08, 15,836.51 and 6,440.72 is: 8,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.08 : 15,836.51 = 6,440.72 : x
  2. Step 2: Convert to fraction form
    11,476.08/15,836.51 = 6,440.72/x
  3. Step 3: Cross multiply
    11,476.08x = 15,836.51 × 6,440.72
  4. Step 4: Simplify right side
    11,476.08x = 101,998,463.61
  5. Step 5: Solve for x
    x = 101,998,463.61/11,476.08
  6. Step 6: Final answer
    x = 8,887.92

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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.