Home / 7,178.40-10,763.60-3,013.92

Finding the Fourth Proportional to 7,178.40, 10,763.60 and 3,013.92

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Solution

The fourth proportional to 7,178.40, 10,763.60 and 3,013.92 is: 4,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.40 : 10,763.60 = 3,013.92 : x
  2. Step 2: Convert to fraction form
    7,178.40/10,763.60 = 3,013.92/x
  3. Step 3: Cross multiply
    7,178.40x = 10,763.60 × 3,013.92
  4. Step 4: Simplify right side
    7,178.40x = 32,440,629.31
  5. Step 5: Solve for x
    x = 32,440,629.31/7,178.40
  6. Step 6: Final answer
    x = 4,519.20

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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.