Home / 14,285.92-19,714.44-7,998.40

Finding the Fourth Proportional to 14,285.92, 19,714.44 and 7,998.40

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Solution

The fourth proportional to 14,285.92, 19,714.44 and 7,998.40 is: 11,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.92 : 19,714.44 = 7,998.40 : x
  2. Step 2: Convert to fraction form
    14,285.92/19,714.44 = 7,998.40/x
  3. Step 3: Cross multiply
    14,285.92x = 19,714.44 × 7,998.40
  4. Step 4: Simplify right side
    14,285.92x = 157,683,976.90
  5. Step 5: Solve for x
    x = 157,683,976.90/14,285.92
  6. Step 6: Final answer
    x = 11,037.72

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Double scale
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Similar ratio
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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.