Home / 17,987.88-26,981.73-4,839.18

Finding the Fourth Proportional to 17,987.88, 26,981.73 and 4,839.18

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Solution

The fourth proportional to 17,987.88, 26,981.73 and 4,839.18 is: 7,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.88 : 26,981.73 = 4,839.18 : x
  2. Step 2: Convert to fraction form
    17,987.88/26,981.73 = 4,839.18/x
  3. Step 3: Cross multiply
    17,987.88x = 26,981.73 × 4,839.18
  4. Step 4: Simplify right side
    17,987.88x = 130,569,448.18
  5. Step 5: Solve for x
    x = 130,569,448.18/17,987.88
  6. Step 6: Final answer
    x = 7,258.75

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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.