Home / 7,810.60-11,718.08-4,517.68

Finding the Fourth Proportional to 7,810.60, 11,718.08 and 4,517.68

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Solution

The fourth proportional to 7,810.60, 11,718.08 and 4,517.68 is: 6,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.60 : 11,718.08 = 4,517.68 : x
  2. Step 2: Convert to fraction form
    7,810.60/11,718.08 = 4,517.68/x
  3. Step 3: Cross multiply
    7,810.60x = 11,718.08 × 4,517.68
  4. Step 4: Simplify right side
    7,810.60x = 52,938,535.65
  5. Step 5: Solve for x
    x = 52,938,535.65/7,810.60
  6. Step 6: Final answer
    x = 6,777.78

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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.