Home / 14,725.32-20,320.20-8,010.78

Finding the Fourth Proportional to 14,725.32, 20,320.20 and 8,010.78

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Solution

The fourth proportional to 14,725.32, 20,320.20 and 8,010.78 is: 11,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,725.32 : 20,320.20 = 8,010.78 : x
  2. Step 2: Convert to fraction form
    14,725.32/20,320.20 = 8,010.78/x
  3. Step 3: Cross multiply
    14,725.32x = 20,320.20 × 8,010.78
  4. Step 4: Simplify right side
    14,725.32x = 162,780,651.76
  5. Step 5: Solve for x
    x = 162,780,651.76/14,725.32
  6. Step 6: Final answer
    x = 11,054.47

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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.