Home / 8,352.12-12,528.27-3,420.48

Finding the Fourth Proportional to 8,352.12, 12,528.27 and 3,420.48

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Solution

The fourth proportional to 8,352.12, 12,528.27 and 3,420.48 is: 5,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.12 : 12,528.27 = 3,420.48 : x
  2. Step 2: Convert to fraction form
    8,352.12/12,528.27 = 3,420.48/x
  3. Step 3: Cross multiply
    8,352.12x = 12,528.27 × 3,420.48
  4. Step 4: Simplify right side
    8,352.12x = 42,852,696.97
  5. Step 5: Solve for x
    x = 42,852,696.97/8,352.12
  6. Step 6: Final answer
    x = 5,130.76

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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.