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Finding the Fourth Proportional to 8,835.82, 13,258.65 and 7,543.18

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Solution

The fourth proportional to 8,835.82, 13,258.65 and 7,543.18 is: 11,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.82 : 13,258.65 = 7,543.18 : x
  2. Step 2: Convert to fraction form
    8,835.82/13,258.65 = 7,543.18/x
  3. Step 3: Cross multiply
    8,835.82x = 13,258.65 × 7,543.18
  4. Step 4: Simplify right side
    8,835.82x = 100,012,383.51
  5. Step 5: Solve for x
    x = 100,012,383.51/8,835.82
  6. Step 6: Final answer
    x = 11,318.97

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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.