Home / 13,072.92-18,042.78-9,547.80

Finding the Fourth Proportional to 13,072.92, 18,042.78 and 9,547.80

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Solution

The fourth proportional to 13,072.92, 18,042.78 and 9,547.80 is: 13,177.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.92 : 18,042.78 = 9,547.80 : x
  2. Step 2: Convert to fraction form
    13,072.92/18,042.78 = 9,547.80/x
  3. Step 3: Cross multiply
    13,072.92x = 18,042.78 × 9,547.80
  4. Step 4: Simplify right side
    13,072.92x = 172,268,854.88
  5. Step 5: Solve for x
    x = 172,268,854.88/13,072.92
  6. Step 6: Final answer
    x = 13,177.53

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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.