Home / 15,474.48-21,355.23-8,401.35

Finding the Fourth Proportional to 15,474.48, 21,355.23 and 8,401.35

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Solution

The fourth proportional to 15,474.48, 21,355.23 and 8,401.35 is: 11,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.48 : 21,355.23 = 8,401.35 : x
  2. Step 2: Convert to fraction form
    15,474.48/21,355.23 = 8,401.35/x
  3. Step 3: Cross multiply
    15,474.48x = 21,355.23 × 8,401.35
  4. Step 4: Simplify right side
    15,474.48x = 179,412,761.56
  5. Step 5: Solve for x
    x = 179,412,761.56/15,474.48
  6. Step 6: Final answer
    x = 11,594.11

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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.