Home / 6,777.90-9,353.46-4,124.78

Finding the Fourth Proportional to 6,777.90, 9,353.46 and 4,124.78

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Solution

The fourth proportional to 6,777.90, 9,353.46 and 4,124.78 is: 5,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777.90 : 9,353.46 = 4,124.78 : x
  2. Step 2: Convert to fraction form
    6,777.90/9,353.46 = 4,124.78/x
  3. Step 3: Cross multiply
    6,777.90x = 9,353.46 × 4,124.78
  4. Step 4: Simplify right side
    6,777.90x = 38,580,964.74
  5. Step 5: Solve for x
    x = 38,580,964.74/6,777.90
  6. Step 6: Final answer
    x = 5,692.17

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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.