Home / 8,538.07-12,808.98-2,615

Finding the Fourth Proportional to 8,538.07, 12,808.98 and 2,615

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Solution

The fourth proportional to 8,538.07, 12,808.98 and 2,615 is: 3,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.07 : 12,808.98 = 2,615 : x
  2. Step 2: Convert to fraction form
    8,538.07/12,808.98 = 2,615/x
  3. Step 3: Cross multiply
    8,538.07x = 12,808.98 × 2,615
  4. Step 4: Simplify right side
    8,538.07x = 33,495,482.70
  5. Step 5: Solve for x
    x = 33,495,482.70/8,538.07
  6. Step 6: Final answer
    x = 3,923.07

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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.