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Finding the Fourth Proportional to 10,959.71, 15,124.56 and 6,243.89

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Solution

The fourth proportional to 10,959.71, 15,124.56 and 6,243.89 is: 8,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.71 : 15,124.56 = 6,243.89 : x
  2. Step 2: Convert to fraction form
    10,959.71/15,124.56 = 6,243.89/x
  3. Step 3: Cross multiply
    10,959.71x = 15,124.56 × 6,243.89
  4. Step 4: Simplify right side
    10,959.71x = 94,436,088.94
  5. Step 5: Solve for x
    x = 94,436,088.94/10,959.71
  6. Step 6: Final answer
    x = 8,616.66

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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.