Home / 8,770.64-12,103.52-4,791.81

Finding the Fourth Proportional to 8,770.64, 12,103.52 and 4,791.81

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Solution

The fourth proportional to 8,770.64, 12,103.52 and 4,791.81 is: 6,612.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.64 : 12,103.52 = 4,791.81 : x
  2. Step 2: Convert to fraction form
    8,770.64/12,103.52 = 4,791.81/x
  3. Step 3: Cross multiply
    8,770.64x = 12,103.52 × 4,791.81
  4. Step 4: Simplify right side
    8,770.64x = 57,997,744.21
  5. Step 5: Solve for x
    x = 57,997,744.21/8,770.64
  6. Step 6: Final answer
    x = 6,612.72

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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.