Home / 15,125.34-20,872.98-8,410.89

Finding the Fourth Proportional to 15,125.34, 20,872.98 and 8,410.89

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Solution

The fourth proportional to 15,125.34, 20,872.98 and 8,410.89 is: 11,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.34 : 20,872.98 = 8,410.89 : x
  2. Step 2: Convert to fraction form
    15,125.34/20,872.98 = 8,410.89/x
  3. Step 3: Cross multiply
    15,125.34x = 20,872.98 × 8,410.89
  4. Step 4: Simplify right side
    15,125.34x = 175,560,338.75
  5. Step 5: Solve for x
    x = 175,560,338.75/15,125.34
  6. Step 6: Final answer
    x = 11,607.03

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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.