Home / 13,050.74-18,002.49-8,329.70

Finding the Fourth Proportional to 13,050.74, 18,002.49 and 8,329.70

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Solution

The fourth proportional to 13,050.74, 18,002.49 and 8,329.70 is: 11,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.74 : 18,002.49 = 8,329.70 : x
  2. Step 2: Convert to fraction form
    13,050.74/18,002.49 = 8,329.70/x
  3. Step 3: Cross multiply
    13,050.74x = 18,002.49 × 8,329.70
  4. Step 4: Simplify right side
    13,050.74x = 149,955,340.95
  5. Step 5: Solve for x
    x = 149,955,340.95/13,050.74
  6. Step 6: Final answer
    x = 11,490.18

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Double scale
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Similar ratio
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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.