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Finding the Fourth Proportional to 15,673.68, 21,630.02 and 8,600.11

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Solution

The fourth proportional to 15,673.68, 21,630.02 and 8,600.11 is: 11,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.68 : 21,630.02 = 8,600.11 : x
  2. Step 2: Convert to fraction form
    15,673.68/21,630.02 = 8,600.11/x
  3. Step 3: Cross multiply
    15,673.68x = 21,630.02 × 8,600.11
  4. Step 4: Simplify right side
    15,673.68x = 186,020,551.30
  5. Step 5: Solve for x
    x = 186,020,551.30/15,673.68
  6. Step 6: Final answer
    x = 11,868.34

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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.