Home / 8,709.40-13,062.78-2,866.12

Finding the Fourth Proportional to 8,709.40, 13,062.78 and 2,866.12

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Solution

The fourth proportional to 8,709.40, 13,062.78 and 2,866.12 is: 4,298.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.40 : 13,062.78 = 2,866.12 : x
  2. Step 2: Convert to fraction form
    8,709.40/13,062.78 = 2,866.12/x
  3. Step 3: Cross multiply
    8,709.40x = 13,062.78 × 2,866.12
  4. Step 4: Simplify right side
    8,709.40x = 37,439,495.01
  5. Step 5: Solve for x
    x = 37,439,495.01/8,709.40
  6. Step 6: Final answer
    x = 4,298.75

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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.