Home / 6,178.80-9,275.40-6,135.60

Finding the Fourth Proportional to 6,178.80, 9,275.40 and 6,135.60

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Solution

The fourth proportional to 6,178.80, 9,275.40 and 6,135.60 is: 9,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,178.80 : 9,275.40 = 6,135.60 : x
  2. Step 2: Convert to fraction form
    6,178.80/9,275.40 = 6,135.60/x
  3. Step 3: Cross multiply
    6,178.80x = 9,275.40 × 6,135.60
  4. Step 4: Simplify right side
    6,178.80x = 56,910,144.24
  5. Step 5: Solve for x
    x = 56,910,144.24/6,178.80
  6. Step 6: Final answer
    x = 9,210.55

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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.