Home / 8,665.40-12,991.66-3,041.56

Finding the Fourth Proportional to 8,665.40, 12,991.66 and 3,041.56

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Solution

The fourth proportional to 8,665.40, 12,991.66 and 3,041.56 is: 4,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.40 : 12,991.66 = 3,041.56 : x
  2. Step 2: Convert to fraction form
    8,665.40/12,991.66 = 3,041.56/x
  3. Step 3: Cross multiply
    8,665.40x = 12,991.66 × 3,041.56
  4. Step 4: Simplify right side
    8,665.40x = 39,514,913.39
  5. Step 5: Solve for x
    x = 39,514,913.39/8,665.40
  6. Step 6: Final answer
    x = 4,560.08

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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.