Home / 14,518.08-21,778.56-4,129.92

Finding the Fourth Proportional to 14,518.08, 21,778.56 and 4,129.92

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Solution

The fourth proportional to 14,518.08, 21,778.56 and 4,129.92 is: 6,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.08 : 21,778.56 = 4,129.92 : x
  2. Step 2: Convert to fraction form
    14,518.08/21,778.56 = 4,129.92/x
  3. Step 3: Cross multiply
    14,518.08x = 21,778.56 × 4,129.92
  4. Step 4: Simplify right side
    14,518.08x = 89,943,710.52
  5. Step 5: Solve for x
    x = 89,943,710.52/14,518.08
  6. Step 6: Final answer
    x = 6,195.29

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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.