Home / 14,121.33-19,486.20-7,746.90

Finding the Fourth Proportional to 14,121.33, 19,486.20 and 7,746.90

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Solution

The fourth proportional to 14,121.33, 19,486.20 and 7,746.90 is: 10,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.33 : 19,486.20 = 7,746.90 : x
  2. Step 2: Convert to fraction form
    14,121.33/19,486.20 = 7,746.90/x
  3. Step 3: Cross multiply
    14,121.33x = 19,486.20 × 7,746.90
  4. Step 4: Simplify right side
    14,121.33x = 150,957,642.78
  5. Step 5: Solve for x
    x = 150,957,642.78/14,121.33
  6. Step 6: Final answer
    x = 10,690.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.