Home / 12,112.04-18,156.70-4,721.24

Finding the Fourth Proportional to 12,112.04, 18,156.70 and 4,721.24

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Solution

The fourth proportional to 12,112.04, 18,156.70 and 4,721.24 is: 7,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.04 : 18,156.70 = 4,721.24 : x
  2. Step 2: Convert to fraction form
    12,112.04/18,156.70 = 4,721.24/x
  3. Step 3: Cross multiply
    12,112.04x = 18,156.70 × 4,721.24
  4. Step 4: Simplify right side
    12,112.04x = 85,722,138.31
  5. Step 5: Solve for x
    x = 85,722,138.31/12,112.04
  6. Step 6: Final answer
    x = 7,077.43

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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.