Home / 7,178.40-10,756.22-5,538.96

Finding the Fourth Proportional to 7,178.40, 10,756.22 and 5,538.96

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Solution

The fourth proportional to 7,178.40, 10,756.22 and 5,538.96 is: 8,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.40 : 10,756.22 = 5,538.96 : x
  2. Step 2: Convert to fraction form
    7,178.40/10,756.22 = 5,538.96/x
  3. Step 3: Cross multiply
    7,178.40x = 10,756.22 × 5,538.96
  4. Step 4: Simplify right side
    7,178.40x = 59,578,272.33
  5. Step 5: Solve for x
    x = 59,578,272.33/7,178.40
  6. Step 6: Final answer
    x = 8,299.66

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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.