Home / 13,062.69-18,034.20-7,960.11

Finding the Fourth Proportional to 13,062.69, 18,034.20 and 7,960.11

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Solution

The fourth proportional to 13,062.69, 18,034.20 and 7,960.11 is: 10,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.69 : 18,034.20 = 7,960.11 : x
  2. Step 2: Convert to fraction form
    13,062.69/18,034.20 = 7,960.11/x
  3. Step 3: Cross multiply
    13,062.69x = 18,034.20 × 7,960.11
  4. Step 4: Simplify right side
    13,062.69x = 143,554,215.76
  5. Step 5: Solve for x
    x = 143,554,215.76/13,062.69
  6. Step 6: Final answer
    x = 10,989.64

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Half scale
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Double scale
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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.