Home / 14,028.10-19,350.61-8,990.53

Finding the Fourth Proportional to 14,028.10, 19,350.61 and 8,990.53

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Solution

The fourth proportional to 14,028.10, 19,350.61 and 8,990.53 is: 12,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.10 : 19,350.61 = 8,990.53 : x
  2. Step 2: Convert to fraction form
    14,028.10/19,350.61 = 8,990.53/x
  3. Step 3: Cross multiply
    14,028.10x = 19,350.61 × 8,990.53
  4. Step 4: Simplify right side
    14,028.10x = 173,972,239.72
  5. Step 5: Solve for x
    x = 173,972,239.72/14,028.10
  6. Step 6: Final answer
    x = 12,401.70

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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.