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Finding the Fourth Proportional to 9,168.66, 13,752.84 and 2,928.63

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Solution

The fourth proportional to 9,168.66, 13,752.84 and 2,928.63 is: 4,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.66 : 13,752.84 = 2,928.63 : x
  2. Step 2: Convert to fraction form
    9,168.66/13,752.84 = 2,928.63/x
  3. Step 3: Cross multiply
    9,168.66x = 13,752.84 × 2,928.63
  4. Step 4: Simplify right side
    9,168.66x = 40,276,948.53
  5. Step 5: Solve for x
    x = 40,276,948.53/9,168.66
  6. Step 6: Final answer
    x = 4,392.89

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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.