Home / 15,815.52-21,824.07-8,741.91

Finding the Fourth Proportional to 15,815.52, 21,824.07 and 8,741.91

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Solution

The fourth proportional to 15,815.52, 21,824.07 and 8,741.91 is: 12,063.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.52 : 21,824.07 = 8,741.91 : x
  2. Step 2: Convert to fraction form
    15,815.52/21,824.07 = 8,741.91/x
  3. Step 3: Cross multiply
    15,815.52x = 21,824.07 × 8,741.91
  4. Step 4: Simplify right side
    15,815.52x = 190,784,055.77
  5. Step 5: Solve for x
    x = 190,784,055.77/15,815.52
  6. Step 6: Final answer
    x = 12,063.09

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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.