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Finding the Fourth Proportional to 14,510.64, 21,751.56 and 8,658.48

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Solution

The fourth proportional to 14,510.64, 21,751.56 and 8,658.48 is: 12,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,510.64 : 21,751.56 = 8,658.48 : x
  2. Step 2: Convert to fraction form
    14,510.64/21,751.56 = 8,658.48/x
  3. Step 3: Cross multiply
    14,510.64x = 21,751.56 × 8,658.48
  4. Step 4: Simplify right side
    14,510.64x = 188,335,447.23
  5. Step 5: Solve for x
    x = 188,335,447.23/14,510.64
  6. Step 6: Final answer
    x = 12,979.13

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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.