Home / 10,415.91-15,625.08-3,659.42

Finding the Fourth Proportional to 10,415.91, 15,625.08 and 3,659.42

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Solution

The fourth proportional to 10,415.91, 15,625.08 and 3,659.42 is: 5,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.91 : 15,625.08 = 3,659.42 : x
  2. Step 2: Convert to fraction form
    10,415.91/15,625.08 = 3,659.42/x
  3. Step 3: Cross multiply
    10,415.91x = 15,625.08 × 3,659.42
  4. Step 4: Simplify right side
    10,415.91x = 57,178,672.89
  5. Step 5: Solve for x
    x = 57,178,672.89/10,415.91
  6. Step 6: Final answer
    x = 5,489.55

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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.