Home / 15,727.08-21,703.36-9,439.44

Finding the Fourth Proportional to 15,727.08, 21,703.36 and 9,439.44

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Solution

The fourth proportional to 15,727.08, 21,703.36 and 9,439.44 is: 13,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.08 : 21,703.36 = 9,439.44 : x
  2. Step 2: Convert to fraction form
    15,727.08/21,703.36 = 9,439.44/x
  3. Step 3: Cross multiply
    15,727.08x = 21,703.36 × 9,439.44
  4. Step 4: Simplify right side
    15,727.08x = 204,867,564.52
  5. Step 5: Solve for x
    x = 204,867,564.52/15,727.08
  6. Step 6: Final answer
    x = 13,026.42

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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.