Home / 12,605.04-18,910.67-5,211.61

Finding the Fourth Proportional to 12,605.04, 18,910.67 and 5,211.61

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Solution

The fourth proportional to 12,605.04, 18,910.67 and 5,211.61 is: 7,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.04 : 18,910.67 = 5,211.61 : x
  2. Step 2: Convert to fraction form
    12,605.04/18,910.67 = 5,211.61/x
  3. Step 3: Cross multiply
    12,605.04x = 18,910.67 × 5,211.61
  4. Step 4: Simplify right side
    12,605.04x = 98,555,036.88
  5. Step 5: Solve for x
    x = 98,555,036.88/12,605.04
  6. Step 6: Final answer
    x = 7,818.70

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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.