Home / 10,518.18-15,740.82-8,433.24

Finding the Fourth Proportional to 10,518.18, 15,740.82 and 8,433.24

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Solution

The fourth proportional to 10,518.18, 15,740.82 and 8,433.24 is: 12,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.18 : 15,740.82 = 8,433.24 : x
  2. Step 2: Convert to fraction form
    10,518.18/15,740.82 = 8,433.24/x
  3. Step 3: Cross multiply
    10,518.18x = 15,740.82 × 8,433.24
  4. Step 4: Simplify right side
    10,518.18x = 132,746,112.86
  5. Step 5: Solve for x
    x = 132,746,112.86/10,518.18
  6. Step 6: Final answer
    x = 12,620.64

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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.