Home / 12,652.55-18,976.90-4,330.66

Finding the Fourth Proportional to 12,652.55, 18,976.90 and 4,330.66

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Solution

The fourth proportional to 12,652.55, 18,976.90 and 4,330.66 is: 6,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.55 : 18,976.90 = 4,330.66 : x
  2. Step 2: Convert to fraction form
    12,652.55/18,976.90 = 4,330.66/x
  3. Step 3: Cross multiply
    12,652.55x = 18,976.90 × 4,330.66
  4. Step 4: Simplify right side
    12,652.55x = 82,182,455.57
  5. Step 5: Solve for x
    x = 82,182,455.57/12,652.55
  6. Step 6: Final answer
    x = 6,495.33

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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.