Home / 9,981.36-14,971.88-2,585.22

Finding the Fourth Proportional to 9,981.36, 14,971.88 and 2,585.22

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Solution

The fourth proportional to 9,981.36, 14,971.88 and 2,585.22 is: 3,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.36 : 14,971.88 = 2,585.22 : x
  2. Step 2: Convert to fraction form
    9,981.36/14,971.88 = 2,585.22/x
  3. Step 3: Cross multiply
    9,981.36x = 14,971.88 × 2,585.22
  4. Step 4: Simplify right side
    9,981.36x = 38,705,603.61
  5. Step 5: Solve for x
    x = 38,705,603.61/9,981.36
  6. Step 6: Final answer
    x = 3,877.79

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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.