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Finding the Fourth Proportional to 14,282.65, 21,427.66 and 8,364.53

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Solution

The fourth proportional to 14,282.65, 21,427.66 and 8,364.53 is: 12,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.65 : 21,427.66 = 8,364.53 : x
  2. Step 2: Convert to fraction form
    14,282.65/21,427.66 = 8,364.53/x
  3. Step 3: Cross multiply
    14,282.65x = 21,427.66 × 8,364.53
  4. Step 4: Simplify right side
    14,282.65x = 179,232,304.90
  5. Step 5: Solve for x
    x = 179,232,304.90/14,282.65
  6. Step 6: Final answer
    x = 12,548.95

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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.