Home / 7,313.20-10,955.40-4,382.80

Finding the Fourth Proportional to 7,313.20, 10,955.40 and 4,382.80

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Solution

The fourth proportional to 7,313.20, 10,955.40 and 4,382.80 is: 6,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.20 : 10,955.40 = 4,382.80 : x
  2. Step 2: Convert to fraction form
    7,313.20/10,955.40 = 4,382.80/x
  3. Step 3: Cross multiply
    7,313.20x = 10,955.40 × 4,382.80
  4. Step 4: Simplify right side
    7,313.20x = 48,015,327.12
  5. Step 5: Solve for x
    x = 48,015,327.12/7,313.20
  6. Step 6: Final answer
    x = 6,565.57

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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.