Home / 8,638.08-12,959-2,795.28

Finding the Fourth Proportional to 8,638.08, 12,959 and 2,795.28

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Solution

The fourth proportional to 8,638.08, 12,959 and 2,795.28 is: 4,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.08 : 12,959 = 2,795.28 : x
  2. Step 2: Convert to fraction form
    8,638.08/12,959 = 2,795.28/x
  3. Step 3: Cross multiply
    8,638.08x = 12,959 × 2,795.28
  4. Step 4: Simplify right side
    8,638.08x = 36,224,033.52
  5. Step 5: Solve for x
    x = 36,224,033.52/8,638.08
  6. Step 6: Final answer
    x = 4,193.53

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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.