Home / 15,440.57-21,307.93-8,366.97

Finding the Fourth Proportional to 15,440.57, 21,307.93 and 8,366.97

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Solution

The fourth proportional to 15,440.57, 21,307.93 and 8,366.97 is: 11,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.57 : 21,307.93 = 8,366.97 : x
  2. Step 2: Convert to fraction form
    15,440.57/21,307.93 = 8,366.97/x
  3. Step 3: Cross multiply
    15,440.57x = 21,307.93 × 8,366.97
  4. Step 4: Simplify right side
    15,440.57x = 178,282,790.15
  5. Step 5: Solve for x
    x = 178,282,790.15/15,440.57
  6. Step 6: Final answer
    x = 11,546.39

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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.