Home / 19,898.89-27,452.50-12,727.15

Finding the Fourth Proportional to 19,898.89, 27,452.50 and 12,727.15

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Solution

The fourth proportional to 19,898.89, 27,452.50 and 12,727.15 is: 17,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.89 : 27,452.50 = 12,727.15 : x
  2. Step 2: Convert to fraction form
    19,898.89/27,452.50 = 12,727.15/x
  3. Step 3: Cross multiply
    19,898.89x = 27,452.50 × 12,727.15
  4. Step 4: Simplify right side
    19,898.89x = 349,391,984.93
  5. Step 5: Solve for x
    x = 349,391,984.93/19,898.89
  6. Step 6: Final answer
    x = 17,558.37

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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.