Home / 15,893.28-21,940.56-12,117.06

Finding the Fourth Proportional to 15,893.28, 21,940.56 and 12,117.06

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Solution

The fourth proportional to 15,893.28, 21,940.56 and 12,117.06 is: 16,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.28 : 21,940.56 = 12,117.06 : x
  2. Step 2: Convert to fraction form
    15,893.28/21,940.56 = 12,117.06/x
  3. Step 3: Cross multiply
    15,893.28x = 21,940.56 × 12,117.06
  4. Step 4: Simplify right side
    15,893.28x = 265,855,081.95
  5. Step 5: Solve for x
    x = 265,855,081.95/15,893.28
  6. Step 6: Final answer
    x = 16,727.52

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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.