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Finding the Fourth Proportional to 11,476.63, 15,837.03 and 6,439.92

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Solution

The fourth proportional to 11,476.63, 15,837.03 and 6,439.92 is: 8,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.63 : 15,837.03 = 6,439.92 : x
  2. Step 2: Convert to fraction form
    11,476.63/15,837.03 = 6,439.92/x
  3. Step 3: Cross multiply
    11,476.63x = 15,837.03 × 6,439.92
  4. Step 4: Simplify right side
    11,476.63x = 101,989,206.24
  5. Step 5: Solve for x
    x = 101,989,206.24/11,476.63
  6. Step 6: Final answer
    x = 8,886.69

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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.