Home / 8,043.29-12,078.63-5,236.90

Finding the Fourth Proportional to 8,043.29, 12,078.63 and 5,236.90

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Solution

The fourth proportional to 8,043.29, 12,078.63 and 5,236.90 is: 7,864.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.29 : 12,078.63 = 5,236.90 : x
  2. Step 2: Convert to fraction form
    8,043.29/12,078.63 = 5,236.90/x
  3. Step 3: Cross multiply
    8,043.29x = 12,078.63 × 5,236.90
  4. Step 4: Simplify right side
    8,043.29x = 63,254,577.45
  5. Step 5: Solve for x
    x = 63,254,577.45/8,043.29
  6. Step 6: Final answer
    x = 7,864.27

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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.