Home / 15,634.20-21,574.40-8,559.38

Finding the Fourth Proportional to 15,634.20, 21,574.40 and 8,559.38

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Solution

The fourth proportional to 15,634.20, 21,574.40 and 8,559.38 is: 11,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.20 : 21,574.40 = 8,559.38 : x
  2. Step 2: Convert to fraction form
    15,634.20/21,574.40 = 8,559.38/x
  3. Step 3: Cross multiply
    15,634.20x = 21,574.40 × 8,559.38
  4. Step 4: Simplify right side
    15,634.20x = 184,663,487.87
  5. Step 5: Solve for x
    x = 184,663,487.87/15,634.20
  6. Step 6: Final answer
    x = 11,811.51

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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.