Home / 12,444.63-17,168.13-8,190.21

Finding the Fourth Proportional to 12,444.63, 17,168.13 and 8,190.21

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Solution

The fourth proportional to 12,444.63, 17,168.13 and 8,190.21 is: 11,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.63 : 17,168.13 = 8,190.21 : x
  2. Step 2: Convert to fraction form
    12,444.63/17,168.13 = 8,190.21/x
  3. Step 3: Cross multiply
    12,444.63x = 17,168.13 × 8,190.21
  4. Step 4: Simplify right side
    12,444.63x = 140,610,590.01
  5. Step 5: Solve for x
    x = 140,610,590.01/12,444.63
  6. Step 6: Final answer
    x = 11,298.90

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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.