Home / 13,479.76-18,603.56-8,174.80

Finding the Fourth Proportional to 13,479.76, 18,603.56 and 8,174.80

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Solution

The fourth proportional to 13,479.76, 18,603.56 and 8,174.80 is: 11,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.76 : 18,603.56 = 8,174.80 : x
  2. Step 2: Convert to fraction form
    13,479.76/18,603.56 = 8,174.80/x
  3. Step 3: Cross multiply
    13,479.76x = 18,603.56 × 8,174.80
  4. Step 4: Simplify right side
    13,479.76x = 152,080,382.29
  5. Step 5: Solve for x
    x = 152,080,382.29/13,479.76
  6. Step 6: Final answer
    x = 11,282.13

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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.