Home / 8,762.20-13,151.40-4,382.80

Finding the Fourth Proportional to 8,762.20, 13,151.40 and 4,382.80

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Solution

The fourth proportional to 8,762.20, 13,151.40 and 4,382.80 is: 6,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.20 : 13,151.40 = 4,382.80 : x
  2. Step 2: Convert to fraction form
    8,762.20/13,151.40 = 4,382.80/x
  3. Step 3: Cross multiply
    8,762.20x = 13,151.40 × 4,382.80
  4. Step 4: Simplify right side
    8,762.20x = 57,639,955.92
  5. Step 5: Solve for x
    x = 57,639,955.92/8,762.20
  6. Step 6: Final answer
    x = 6,578.25

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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.