Home / 7,251.20-10,870.40-6,473.60

Finding the Fourth Proportional to 7,251.20, 10,870.40 and 6,473.60

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Solution

The fourth proportional to 7,251.20, 10,870.40 and 6,473.60 is: 9,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.20 : 10,870.40 = 6,473.60 : x
  2. Step 2: Convert to fraction form
    7,251.20/10,870.40 = 6,473.60/x
  3. Step 3: Cross multiply
    7,251.20x = 10,870.40 × 6,473.60
  4. Step 4: Simplify right side
    7,251.20x = 70,370,621.44
  5. Step 5: Solve for x
    x = 70,370,621.44/7,251.20
  6. Step 6: Final answer
    x = 9,704.69

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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.