Home / 15,827.33-21,827.27-13,588.49

Finding the Fourth Proportional to 15,827.33, 21,827.27 and 13,588.49

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Solution

The fourth proportional to 15,827.33, 21,827.27 and 13,588.49 is: 18,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.33 : 21,827.27 = 13,588.49 : x
  2. Step 2: Convert to fraction form
    15,827.33/21,827.27 = 13,588.49/x
  3. Step 3: Cross multiply
    15,827.33x = 21,827.27 × 13,588.49
  4. Step 4: Simplify right side
    15,827.33x = 296,599,572.18
  5. Step 5: Solve for x
    x = 296,599,572.18/15,827.33
  6. Step 6: Final answer
    x = 18,739.71

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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.