Home / 8,627.19-12,946.77-3,947.78

Finding the Fourth Proportional to 8,627.19, 12,946.77 and 3,947.78

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Solution

The fourth proportional to 8,627.19, 12,946.77 and 3,947.78 is: 5,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.19 : 12,946.77 = 3,947.78 : x
  2. Step 2: Convert to fraction form
    8,627.19/12,946.77 = 3,947.78/x
  3. Step 3: Cross multiply
    8,627.19x = 12,946.77 × 3,947.78
  4. Step 4: Simplify right side
    8,627.19x = 51,110,934.94
  5. Step 5: Solve for x
    x = 51,110,934.94/8,627.19
  6. Step 6: Final answer
    x = 5,924.40

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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.