Home / 11,179.65-15,427.95-6,143.97

Finding the Fourth Proportional to 11,179.65, 15,427.95 and 6,143.97

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Solution

The fourth proportional to 11,179.65, 15,427.95 and 6,143.97 is: 8,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.65 : 15,427.95 = 6,143.97 : x
  2. Step 2: Convert to fraction form
    11,179.65/15,427.95 = 6,143.97/x
  3. Step 3: Cross multiply
    11,179.65x = 15,427.95 × 6,143.97
  4. Step 4: Simplify right side
    11,179.65x = 94,788,861.96
  5. Step 5: Solve for x
    x = 94,788,861.96/11,179.65
  6. Step 6: Final answer
    x = 8,478.70

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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.