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Finding the Fourth Proportional to 15,674.08, 21,630.08 and 8,600.52

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Solution

The fourth proportional to 15,674.08, 21,630.08 and 8,600.52 is: 11,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.08 : 21,630.08 = 8,600.52 : x
  2. Step 2: Convert to fraction form
    15,674.08/21,630.08 = 8,600.52/x
  3. Step 3: Cross multiply
    15,674.08x = 21,630.08 × 8,600.52
  4. Step 4: Simplify right side
    15,674.08x = 186,029,935.64
  5. Step 5: Solve for x
    x = 186,029,935.64/15,674.08
  6. Step 6: Final answer
    x = 11,868.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.