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Finding the Fourth Proportional to 9,987.30, 14,980.95 and 4,144.37

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Solution

The fourth proportional to 9,987.30, 14,980.95 and 4,144.37 is: 6,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.30 : 14,980.95 = 4,144.37 : x
  2. Step 2: Convert to fraction form
    9,987.30/14,980.95 = 4,144.37/x
  3. Step 3: Cross multiply
    9,987.30x = 14,980.95 × 4,144.37
  4. Step 4: Simplify right side
    9,987.30x = 62,086,524.85
  5. Step 5: Solve for x
    x = 62,086,524.85/9,987.30
  6. Step 6: Final answer
    x = 6,216.55

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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.