Home / 11,318.29-15,618.70-6,282.45

Finding the Fourth Proportional to 11,318.29, 15,618.70 and 6,282.45

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Solution

The fourth proportional to 11,318.29, 15,618.70 and 6,282.45 is: 8,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.29 : 15,618.70 = 6,282.45 : x
  2. Step 2: Convert to fraction form
    11,318.29/15,618.70 = 6,282.45/x
  3. Step 3: Cross multiply
    11,318.29x = 15,618.70 × 6,282.45
  4. Step 4: Simplify right side
    11,318.29x = 98,123,701.82
  5. Step 5: Solve for x
    x = 98,123,701.82/11,318.29
  6. Step 6: Final answer
    x = 8,669.48

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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.