Home / 7,763.20-10,712.40-4,618.96

Finding the Fourth Proportional to 7,763.20, 10,712.40 and 4,618.96

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Solution

The fourth proportional to 7,763.20, 10,712.40 and 4,618.96 is: 6,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.20 : 10,712.40 = 4,618.96 : x
  2. Step 2: Convert to fraction form
    7,763.20/10,712.40 = 4,618.96/x
  3. Step 3: Cross multiply
    7,763.20x = 10,712.40 × 4,618.96
  4. Step 4: Simplify right side
    7,763.20x = 49,480,147.10
  5. Step 5: Solve for x
    x = 49,480,147.10/7,763.20
  6. Step 6: Final answer
    x = 6,373.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.