Home / 18,579.93-27,851.55-11,897.40

Finding the Fourth Proportional to 18,579.93, 27,851.55 and 11,897.40

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Solution

The fourth proportional to 18,579.93, 27,851.55 and 11,897.40 is: 17,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.93 : 27,851.55 = 11,897.40 : x
  2. Step 2: Convert to fraction form
    18,579.93/27,851.55 = 11,897.40/x
  3. Step 3: Cross multiply
    18,579.93x = 27,851.55 × 11,897.40
  4. Step 4: Simplify right side
    18,579.93x = 331,361,030.97
  5. Step 5: Solve for x
    x = 331,361,030.97/18,579.93
  6. Step 6: Final answer
    x = 17,834.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.