Home / 12,112.91-18,156.30-5,859.71

Finding the Fourth Proportional to 12,112.91, 18,156.30 and 5,859.71

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Solution

The fourth proportional to 12,112.91, 18,156.30 and 5,859.71 is: 8,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.91 : 18,156.30 = 5,859.71 : x
  2. Step 2: Convert to fraction form
    12,112.91/18,156.30 = 5,859.71/x
  3. Step 3: Cross multiply
    12,112.91x = 18,156.30 × 5,859.71
  4. Step 4: Simplify right side
    12,112.91x = 106,390,652.67
  5. Step 5: Solve for x
    x = 106,390,652.67/12,112.91
  6. Step 6: Final answer
    x = 8,783.24

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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.