Home / 15,475.10-21,355.58-8,401.52

Finding the Fourth Proportional to 15,475.10, 21,355.58 and 8,401.52

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Solution

The fourth proportional to 15,475.10, 21,355.58 and 8,401.52 is: 11,594.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.10 : 21,355.58 = 8,401.52 : x
  2. Step 2: Convert to fraction form
    15,475.10/21,355.58 = 8,401.52/x
  3. Step 3: Cross multiply
    15,475.10x = 21,355.58 × 8,401.52
  4. Step 4: Simplify right side
    15,475.10x = 179,419,237.09
  5. Step 5: Solve for x
    x = 179,419,237.09/15,475.10
  6. Step 6: Final answer
    x = 11,594.06

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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.