Home / 8,130.20-12,193.38-3,510.68

Finding the Fourth Proportional to 8,130.20, 12,193.38 and 3,510.68

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Solution

The fourth proportional to 8,130.20, 12,193.38 and 3,510.68 is: 5,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.20 : 12,193.38 = 3,510.68 : x
  2. Step 2: Convert to fraction form
    8,130.20/12,193.38 = 3,510.68/x
  3. Step 3: Cross multiply
    8,130.20x = 12,193.38 × 3,510.68
  4. Step 4: Simplify right side
    8,130.20x = 42,807,055.30
  5. Step 5: Solve for x
    x = 42,807,055.30/8,130.20
  6. Step 6: Final answer
    x = 5,265.19

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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.