Home / 8,327.60-11,498.70-5,145.51

Finding the Fourth Proportional to 8,327.60, 11,498.70 and 5,145.51

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Solution

The fourth proportional to 8,327.60, 11,498.70 and 5,145.51 is: 7,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.60 : 11,498.70 = 5,145.51 : x
  2. Step 2: Convert to fraction form
    8,327.60/11,498.70 = 5,145.51/x
  3. Step 3: Cross multiply
    8,327.60x = 11,498.70 × 5,145.51
  4. Step 4: Simplify right side
    8,327.60x = 59,166,675.84
  5. Step 5: Solve for x
    x = 59,166,675.84/8,327.60
  6. Step 6: Final answer
    x = 7,104.89

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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.