Home / 12,577.04-18,840.65-8,618.57

Finding the Fourth Proportional to 12,577.04, 18,840.65 and 8,618.57

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Solution

The fourth proportional to 12,577.04, 18,840.65 and 8,618.57 is: 12,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.04 : 18,840.65 = 8,618.57 : x
  2. Step 2: Convert to fraction form
    12,577.04/18,840.65 = 8,618.57/x
  3. Step 3: Cross multiply
    12,577.04x = 18,840.65 × 8,618.57
  4. Step 4: Simplify right side
    12,577.04x = 162,379,442.71
  5. Step 5: Solve for x
    x = 162,379,442.71/12,577.04
  6. Step 6: Final answer
    x = 12,910.78

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1.5x scale

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.