Home / 8,920.24-12,310.13-4,887.45

Finding the Fourth Proportional to 8,920.24, 12,310.13 and 4,887.45

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Solution

The fourth proportional to 8,920.24, 12,310.13 and 4,887.45 is: 6,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.24 : 12,310.13 = 4,887.45 : x
  2. Step 2: Convert to fraction form
    8,920.24/12,310.13 = 4,887.45/x
  3. Step 3: Cross multiply
    8,920.24x = 12,310.13 × 4,887.45
  4. Step 4: Simplify right side
    8,920.24x = 60,165,157.09
  5. Step 5: Solve for x
    x = 60,165,157.09/8,920.24
  6. Step 6: Final answer
    x = 6,744.79

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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.