Home / 13,336.52-19,967.76-8,661.92

Finding the Fourth Proportional to 13,336.52, 19,967.76 and 8,661.92

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Solution

The fourth proportional to 13,336.52, 19,967.76 and 8,661.92 is: 12,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.52 : 19,967.76 = 8,661.92 : x
  2. Step 2: Convert to fraction form
    13,336.52/19,967.76 = 8,661.92/x
  3. Step 3: Cross multiply
    13,336.52x = 19,967.76 × 8,661.92
  4. Step 4: Simplify right side
    13,336.52x = 172,959,139.70
  5. Step 5: Solve for x
    x = 172,959,139.70/13,336.52
  6. Step 6: Final answer
    x = 12,968.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.