Home / 15,213.15-22,811.09-6,443.55

Finding the Fourth Proportional to 15,213.15, 22,811.09 and 6,443.55

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Solution

The fourth proportional to 15,213.15, 22,811.09 and 6,443.55 is: 9,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.15 : 22,811.09 = 6,443.55 : x
  2. Step 2: Convert to fraction form
    15,213.15/22,811.09 = 6,443.55/x
  3. Step 3: Cross multiply
    15,213.15x = 22,811.09 × 6,443.55
  4. Step 4: Simplify right side
    15,213.15x = 146,984,366.75
  5. Step 5: Solve for x
    x = 146,984,366.75/15,213.15
  6. Step 6: Final answer
    x = 9,661.67

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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.