Home / 13,840.61-19,103.18-8,800.92

Finding the Fourth Proportional to 13,840.61, 19,103.18 and 8,800.92

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Solution

The fourth proportional to 13,840.61, 19,103.18 and 8,800.92 is: 12,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.61 : 19,103.18 = 8,800.92 : x
  2. Step 2: Convert to fraction form
    13,840.61/19,103.18 = 8,800.92/x
  3. Step 3: Cross multiply
    13,840.61x = 19,103.18 × 8,800.92
  4. Step 4: Simplify right side
    13,840.61x = 168,125,514.92
  5. Step 5: Solve for x
    x = 168,125,514.92/13,840.61
  6. Step 6: Final answer
    x = 12,147.27

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Half scale
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Double scale
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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.