Home / 13,549.16-18,689.66-8,949.97

Finding the Fourth Proportional to 13,549.16, 18,689.66 and 8,949.97

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Solution

The fourth proportional to 13,549.16, 18,689.66 and 8,949.97 is: 12,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.16 : 18,689.66 = 8,949.97 : x
  2. Step 2: Convert to fraction form
    13,549.16/18,689.66 = 8,949.97/x
  3. Step 3: Cross multiply
    13,549.16x = 18,689.66 × 8,949.97
  4. Step 4: Simplify right side
    13,549.16x = 167,271,838.40
  5. Step 5: Solve for x
    x = 167,271,838.40/13,549.16
  6. Step 6: Final answer
    x = 12,345.55

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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.