Home / 8,112.32-12,165.51-3,951.08

Finding the Fourth Proportional to 8,112.32, 12,165.51 and 3,951.08

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Solution

The fourth proportional to 8,112.32, 12,165.51 and 3,951.08 is: 5,925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.32 : 12,165.51 = 3,951.08 : x
  2. Step 2: Convert to fraction form
    8,112.32/12,165.51 = 3,951.08/x
  3. Step 3: Cross multiply
    8,112.32x = 12,165.51 × 3,951.08
  4. Step 4: Simplify right side
    8,112.32x = 48,066,903.25
  5. Step 5: Solve for x
    x = 48,066,903.25/8,112.32
  6. Step 6: Final answer
    x = 5,925.17

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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.