Home / 15,746.44-21,706.50-10,431.96

Finding the Fourth Proportional to 15,746.44, 21,706.50 and 10,431.96

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Solution

The fourth proportional to 15,746.44, 21,706.50 and 10,431.96 is: 14,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.44 : 21,706.50 = 10,431.96 : x
  2. Step 2: Convert to fraction form
    15,746.44/21,706.50 = 10,431.96/x
  3. Step 3: Cross multiply
    15,746.44x = 21,706.50 × 10,431.96
  4. Step 4: Simplify right side
    15,746.44x = 226,441,339.74
  5. Step 5: Solve for x
    x = 226,441,339.74/15,746.44
  6. Step 6: Final answer
    x = 14,380.48

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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.