Home / 14,388.90-19,856.62-8,015.56

Finding the Fourth Proportional to 14,388.90, 19,856.62 and 8,015.56

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Solution

The fourth proportional to 14,388.90, 19,856.62 and 8,015.56 is: 11,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.90 : 19,856.62 = 8,015.56 : x
  2. Step 2: Convert to fraction form
    14,388.90/19,856.62 = 8,015.56/x
  3. Step 3: Cross multiply
    14,388.90x = 19,856.62 × 8,015.56
  4. Step 4: Simplify right side
    14,388.90x = 159,161,888.93
  5. Step 5: Solve for x
    x = 159,161,888.93/14,388.90
  6. Step 6: Final answer
    x = 11,061.44

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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.