Home / 8,543.10-12,816.18-2,919.48

Finding the Fourth Proportional to 8,543.10, 12,816.18 and 2,919.48

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Solution

The fourth proportional to 8,543.10, 12,816.18 and 2,919.48 is: 4,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.10 : 12,816.18 = 2,919.48 : x
  2. Step 2: Convert to fraction form
    8,543.10/12,816.18 = 2,919.48/x
  3. Step 3: Cross multiply
    8,543.10x = 12,816.18 × 2,919.48
  4. Step 4: Simplify right side
    8,543.10x = 37,416,581.19
  5. Step 5: Solve for x
    x = 37,416,581.19/8,543.10
  6. Step 6: Final answer
    x = 4,379.74

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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.