Home / 8,957.76-13,436.94-4,278.30

Finding the Fourth Proportional to 8,957.76, 13,436.94 and 4,278.30

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Solution

The fourth proportional to 8,957.76, 13,436.94 and 4,278.30 is: 6,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.76 : 13,436.94 = 4,278.30 : x
  2. Step 2: Convert to fraction form
    8,957.76/13,436.94 = 4,278.30/x
  3. Step 3: Cross multiply
    8,957.76x = 13,436.94 × 4,278.30
  4. Step 4: Simplify right side
    8,957.76x = 57,487,260.40
  5. Step 5: Solve for x
    x = 57,487,260.40/8,957.76
  6. Step 6: Final answer
    x = 6,417.59

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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.