Home / 9,010.80-13,518.63-8,143.29

Finding the Fourth Proportional to 9,010.80, 13,518.63 and 8,143.29

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Solution

The fourth proportional to 9,010.80, 13,518.63 and 8,143.29 is: 12,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.80 : 13,518.63 = 8,143.29 : x
  2. Step 2: Convert to fraction form
    9,010.80/13,518.63 = 8,143.29/x
  3. Step 3: Cross multiply
    9,010.80x = 13,518.63 × 8,143.29
  4. Step 4: Simplify right side
    9,010.80x = 110,086,056.90
  5. Step 5: Solve for x
    x = 110,086,056.90/9,010.80
  6. Step 6: Final answer
    x = 12,217.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.