Home / 15,939.14-21,994.71-9,225.23

Finding the Fourth Proportional to 15,939.14, 21,994.71 and 9,225.23

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Solution

The fourth proportional to 15,939.14, 21,994.71 and 9,225.23 is: 12,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.14 : 21,994.71 = 9,225.23 : x
  2. Step 2: Convert to fraction form
    15,939.14/21,994.71 = 9,225.23/x
  3. Step 3: Cross multiply
    15,939.14x = 21,994.71 × 9,225.23
  4. Step 4: Simplify right side
    15,939.14x = 202,906,258.53
  5. Step 5: Solve for x
    x = 202,906,258.53/15,939.14
  6. Step 6: Final answer
    x = 12,730.06

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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.