Home / 14,778.28-22,192.48-9,879.40

Finding the Fourth Proportional to 14,778.28, 22,192.48 and 9,879.40

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Solution

The fourth proportional to 14,778.28, 22,192.48 and 9,879.40 is: 14,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.28 : 22,192.48 = 9,879.40 : x
  2. Step 2: Convert to fraction form
    14,778.28/22,192.48 = 9,879.40/x
  3. Step 3: Cross multiply
    14,778.28x = 22,192.48 × 9,879.40
  4. Step 4: Simplify right side
    14,778.28x = 219,248,386.91
  5. Step 5: Solve for x
    x = 219,248,386.91/14,778.28
  6. Step 6: Final answer
    x = 14,835.85

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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.