Home / 8,921.39-12,310.52-4,941.51

Finding the Fourth Proportional to 8,921.39, 12,310.52 and 4,941.51

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Solution

The fourth proportional to 8,921.39, 12,310.52 and 4,941.51 is: 6,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.39 : 12,310.52 = 4,941.51 : x
  2. Step 2: Convert to fraction form
    8,921.39/12,310.52 = 4,941.51/x
  3. Step 3: Cross multiply
    8,921.39x = 12,310.52 × 4,941.51
  4. Step 4: Simplify right side
    8,921.39x = 60,832,532.98
  5. Step 5: Solve for x
    x = 60,832,532.98/8,921.39
  6. Step 6: Final answer
    x = 6,818.73

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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.