Home / 18,638.93-25,717.50-13,605.89

Finding the Fourth Proportional to 18,638.93, 25,717.50 and 13,605.89

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Solution

The fourth proportional to 18,638.93, 25,717.50 and 13,605.89 is: 18,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.93 : 25,717.50 = 13,605.89 : x
  2. Step 2: Convert to fraction form
    18,638.93/25,717.50 = 13,605.89/x
  3. Step 3: Cross multiply
    18,638.93x = 25,717.50 × 13,605.89
  4. Step 4: Simplify right side
    18,638.93x = 349,909,347.49
  5. Step 5: Solve for x
    x = 349,909,347.49/18,638.93
  6. Step 6: Final answer
    x = 18,773.04

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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.