Home / 8,941.20-13,411.38-4,257.80

Finding the Fourth Proportional to 8,941.20, 13,411.38 and 4,257.80

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Solution

The fourth proportional to 8,941.20, 13,411.38 and 4,257.80 is: 6,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.20 : 13,411.38 = 4,257.80 : x
  2. Step 2: Convert to fraction form
    8,941.20/13,411.38 = 4,257.80/x
  3. Step 3: Cross multiply
    8,941.20x = 13,411.38 × 4,257.80
  4. Step 4: Simplify right side
    8,941.20x = 57,102,973.76
  5. Step 5: Solve for x
    x = 57,102,973.76/8,941.20
  6. Step 6: Final answer
    x = 6,386.50

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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.