Home / 11,511.57-15,884.61-6,475.53

Finding the Fourth Proportional to 11,511.57, 15,884.61 and 6,475.53

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Solution

The fourth proportional to 11,511.57, 15,884.61 and 6,475.53 is: 8,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.57 : 15,884.61 = 6,475.53 : x
  2. Step 2: Convert to fraction form
    11,511.57/15,884.61 = 6,475.53/x
  3. Step 3: Cross multiply
    11,511.57x = 15,884.61 × 6,475.53
  4. Step 4: Simplify right side
    11,511.57x = 102,861,268.59
  5. Step 5: Solve for x
    x = 102,861,268.59/11,511.57
  6. Step 6: Final answer
    x = 8,935.47

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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.