Home / 7,967.85-11,951.77-2,421.18

Finding the Fourth Proportional to 7,967.85, 11,951.77 and 2,421.18

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Solution

The fourth proportional to 7,967.85, 11,951.77 and 2,421.18 is: 3,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.85 : 11,951.77 = 2,421.18 : x
  2. Step 2: Convert to fraction form
    7,967.85/11,951.77 = 2,421.18/x
  3. Step 3: Cross multiply
    7,967.85x = 11,951.77 × 2,421.18
  4. Step 4: Simplify right side
    7,967.85x = 28,937,386.49
  5. Step 5: Solve for x
    x = 28,937,386.49/7,967.85
  6. Step 6: Final answer
    x = 3,631.77

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Similar ratio
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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.