Home / 14,443.20-19,929.60-8,069.52

Finding the Fourth Proportional to 14,443.20, 19,929.60 and 8,069.52

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Solution

The fourth proportional to 14,443.20, 19,929.60 and 8,069.52 is: 11,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.20 : 19,929.60 = 8,069.52 : x
  2. Step 2: Convert to fraction form
    14,443.20/19,929.60 = 8,069.52/x
  3. Step 3: Cross multiply
    14,443.20x = 19,929.60 × 8,069.52
  4. Step 4: Simplify right side
    14,443.20x = 160,822,305.79
  5. Step 5: Solve for x
    x = 160,822,305.79/14,443.20
  6. Step 6: Final answer
    x = 11,134.81

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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.