Home / 15,440.25-21,307.61-8,366.67

Finding the Fourth Proportional to 15,440.25, 21,307.61 and 8,366.67

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Solution

The fourth proportional to 15,440.25, 21,307.61 and 8,366.67 is: 11,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.25 : 21,307.61 = 8,366.67 : x
  2. Step 2: Convert to fraction form
    15,440.25/21,307.61 = 8,366.67/x
  3. Step 3: Cross multiply
    15,440.25x = 21,307.61 × 8,366.67
  4. Step 4: Simplify right side
    15,440.25x = 178,273,741.36
  5. Step 5: Solve for x
    x = 178,273,741.36/15,440.25
  6. Step 6: Final answer
    x = 11,546.04

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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.