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Finding the Fourth Proportional to 9,319.24, 13,978.84 and 2,393.76

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Solution

The fourth proportional to 9,319.24, 13,978.84 and 2,393.76 is: 3,590.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.24 : 13,978.84 = 2,393.76 : x
  2. Step 2: Convert to fraction form
    9,319.24/13,978.84 = 2,393.76/x
  3. Step 3: Cross multiply
    9,319.24x = 13,978.84 × 2,393.76
  4. Step 4: Simplify right side
    9,319.24x = 33,461,988.04
  5. Step 5: Solve for x
    x = 33,461,988.04/9,319.24
  6. Step 6: Final answer
    x = 3,590.63

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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.