Home / 8,963.78-13,445.60-2,390.49

Finding the Fourth Proportional to 8,963.78, 13,445.60 and 2,390.49

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Solution

The fourth proportional to 8,963.78, 13,445.60 and 2,390.49 is: 3,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.78 : 13,445.60 = 2,390.49 : x
  2. Step 2: Convert to fraction form
    8,963.78/13,445.60 = 2,390.49/x
  3. Step 3: Cross multiply
    8,963.78x = 13,445.60 × 2,390.49
  4. Step 4: Simplify right side
    8,963.78x = 32,141,560.39
  5. Step 5: Solve for x
    x = 32,141,560.39/8,963.78
  6. Step 6: Final answer
    x = 3,585.72

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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.