Home / 8,762.20-13,143.30-6,803.80

Finding the Fourth Proportional to 8,762.20, 13,143.30 and 6,803.80

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Solution

The fourth proportional to 8,762.20, 13,143.30 and 6,803.80 is: 10,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.20 : 13,143.30 = 6,803.80 : x
  2. Step 2: Convert to fraction form
    8,762.20/13,143.30 = 6,803.80/x
  3. Step 3: Cross multiply
    8,762.20x = 13,143.30 × 6,803.80
  4. Step 4: Simplify right side
    8,762.20x = 89,424,384.54
  5. Step 5: Solve for x
    x = 89,424,384.54/8,762.20
  6. Step 6: Final answer
    x = 10,205.70

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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.