Home / 14,035.21-19,360.74-8,921.29

Finding the Fourth Proportional to 14,035.21, 19,360.74 and 8,921.29

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Solution

The fourth proportional to 14,035.21, 19,360.74 and 8,921.29 is: 12,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,035.21 : 19,360.74 = 8,921.29 : x
  2. Step 2: Convert to fraction form
    14,035.21/19,360.74 = 8,921.29/x
  3. Step 3: Cross multiply
    14,035.21x = 19,360.74 × 8,921.29
  4. Step 4: Simplify right side
    14,035.21x = 172,722,776.15
  5. Step 5: Solve for x
    x = 172,722,776.15/14,035.21
  6. Step 6: Final answer
    x = 12,306.39

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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.