Home / 15,440.46-21,307.77-8,366.91

Finding the Fourth Proportional to 15,440.46, 21,307.77 and 8,366.91

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Solution

The fourth proportional to 15,440.46, 21,307.77 and 8,366.91 is: 11,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.46 : 21,307.77 = 8,366.91 : x
  2. Step 2: Convert to fraction form
    15,440.46/21,307.77 = 8,366.91/x
  3. Step 3: Cross multiply
    15,440.46x = 21,307.77 × 8,366.91
  4. Step 4: Simplify right side
    15,440.46x = 178,280,193.89
  5. Step 5: Solve for x
    x = 178,280,193.89/15,440.46
  6. Step 6: Final answer
    x = 11,546.30

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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.