Home / 12,475.51-17,219.10-8,227.34

Finding the Fourth Proportional to 12,475.51, 17,219.10 and 8,227.34

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Solution

The fourth proportional to 12,475.51, 17,219.10 and 8,227.34 is: 11,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.51 : 17,219.10 = 8,227.34 : x
  2. Step 2: Convert to fraction form
    12,475.51/17,219.10 = 8,227.34/x
  3. Step 3: Cross multiply
    12,475.51x = 17,219.10 × 8,227.34
  4. Step 4: Simplify right side
    12,475.51x = 141,667,368.67
  5. Step 5: Solve for x
    x = 141,667,368.67/12,475.51
  6. Step 6: Final answer
    x = 11,355.64

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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.