Home / 7,965.04-10,990.92-4,427.68

Finding the Fourth Proportional to 7,965.04, 10,990.92 and 4,427.68

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Solution

The fourth proportional to 7,965.04, 10,990.92 and 4,427.68 is: 6,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.04 : 10,990.92 = 4,427.68 : x
  2. Step 2: Convert to fraction form
    7,965.04/10,990.92 = 4,427.68/x
  3. Step 3: Cross multiply
    7,965.04x = 10,990.92 × 4,427.68
  4. Step 4: Simplify right side
    7,965.04x = 48,664,276.67
  5. Step 5: Solve for x
    x = 48,664,276.67/7,965.04
  6. Step 6: Final answer
    x = 6,109.73

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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.