Home / 10,421.88-15,626.34-4,872.84

Finding the Fourth Proportional to 10,421.88, 15,626.34 and 4,872.84

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Solution

The fourth proportional to 10,421.88, 15,626.34 and 4,872.84 is: 7,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.88 : 15,626.34 = 4,872.84 : x
  2. Step 2: Convert to fraction form
    10,421.88/15,626.34 = 4,872.84/x
  3. Step 3: Cross multiply
    10,421.88x = 15,626.34 × 4,872.84
  4. Step 4: Simplify right side
    10,421.88x = 76,144,654.61
  5. Step 5: Solve for x
    x = 76,144,654.61/10,421.88
  6. Step 6: Final answer
    x = 7,306.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.