Home / 13,066.92-18,020.41-9,718.11

Finding the Fourth Proportional to 13,066.92, 18,020.41 and 9,718.11

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Solution

The fourth proportional to 13,066.92, 18,020.41 and 9,718.11 is: 13,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.92 : 18,020.41 = 9,718.11 : x
  2. Step 2: Convert to fraction form
    13,066.92/18,020.41 = 9,718.11/x
  3. Step 3: Cross multiply
    13,066.92x = 18,020.41 × 9,718.11
  4. Step 4: Simplify right side
    13,066.92x = 175,124,302.33
  5. Step 5: Solve for x
    x = 175,124,302.33/13,066.92
  6. Step 6: Final answer
    x = 13,402.11

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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.