Home / 18,513.07-25,549.50-11,801.68

Finding the Fourth Proportional to 18,513.07, 25,549.50 and 11,801.68

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Solution

The fourth proportional to 18,513.07, 25,549.50 and 11,801.68 is: 16,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.07 : 25,549.50 = 11,801.68 : x
  2. Step 2: Convert to fraction form
    18,513.07/25,549.50 = 11,801.68/x
  3. Step 3: Cross multiply
    18,513.07x = 25,549.50 × 11,801.68
  4. Step 4: Simplify right side
    18,513.07x = 301,527,023.16
  5. Step 5: Solve for x
    x = 301,527,023.16/18,513.07
  6. Step 6: Final answer
    x = 16,287.25

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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.