Home / 7,338.18-11,008.95-3,178.88

Finding the Fourth Proportional to 7,338.18, 11,008.95 and 3,178.88

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Solution

The fourth proportional to 7,338.18, 11,008.95 and 3,178.88 is: 4,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.18 : 11,008.95 = 3,178.88 : x
  2. Step 2: Convert to fraction form
    7,338.18/11,008.95 = 3,178.88/x
  3. Step 3: Cross multiply
    7,338.18x = 11,008.95 × 3,178.88
  4. Step 4: Simplify right side
    7,338.18x = 34,996,130.98
  5. Step 5: Solve for x
    x = 34,996,130.98/7,338.18
  6. Step 6: Final answer
    x = 4,769.05

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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.