Home / 10,625.18-15,919.30-7,455.90

Finding the Fourth Proportional to 10,625.18, 15,919.30 and 7,455.90

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Solution

The fourth proportional to 10,625.18, 15,919.30 and 7,455.90 is: 11,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625.18 : 15,919.30 = 7,455.90 : x
  2. Step 2: Convert to fraction form
    10,625.18/15,919.30 = 7,455.90/x
  3. Step 3: Cross multiply
    10,625.18x = 15,919.30 × 7,455.90
  4. Step 4: Simplify right side
    10,625.18x = 118,692,777.89
  5. Step 5: Solve for x
    x = 118,692,777.89/10,625.18
  6. Step 6: Final answer
    x = 11,170.90

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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.