Home / 12,585.68-18,863.76-5,186.48

Finding the Fourth Proportional to 12,585.68, 18,863.76 and 5,186.48

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Solution

The fourth proportional to 12,585.68, 18,863.76 and 5,186.48 is: 7,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.68 : 18,863.76 = 5,186.48 : x
  2. Step 2: Convert to fraction form
    12,585.68/18,863.76 = 5,186.48/x
  3. Step 3: Cross multiply
    12,585.68x = 18,863.76 × 5,186.48
  4. Step 4: Simplify right side
    12,585.68x = 97,836,513.96
  5. Step 5: Solve for x
    x = 97,836,513.96/12,585.68
  6. Step 6: Final answer
    x = 7,773.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.