Home / 10,234.84-15,344.88-3,989.56

Finding the Fourth Proportional to 10,234.84, 15,344.88 and 3,989.56

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Solution

The fourth proportional to 10,234.84, 15,344.88 and 3,989.56 is: 5,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,234.84 : 15,344.88 = 3,989.56 : x
  2. Step 2: Convert to fraction form
    10,234.84/15,344.88 = 3,989.56/x
  3. Step 3: Cross multiply
    10,234.84x = 15,344.88 × 3,989.56
  4. Step 4: Simplify right side
    10,234.84x = 61,219,319.45
  5. Step 5: Solve for x
    x = 61,219,319.45/10,234.84
  6. Step 6: Final answer
    x = 5,981.46

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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.