Home / 12,013.92-18,014.40-4,620.24

Finding the Fourth Proportional to 12,013.92, 18,014.40 and 4,620.24

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Solution

The fourth proportional to 12,013.92, 18,014.40 and 4,620.24 is: 6,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.92 : 18,014.40 = 4,620.24 : x
  2. Step 2: Convert to fraction form
    12,013.92/18,014.40 = 4,620.24/x
  3. Step 3: Cross multiply
    12,013.92x = 18,014.40 × 4,620.24
  4. Step 4: Simplify right side
    12,013.92x = 83,230,851.46
  5. Step 5: Solve for x
    x = 83,230,851.46/12,013.92
  6. Step 6: Final answer
    x = 6,927.87

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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.