Home / 15,619.20-21,551.97-8,904.84

Finding the Fourth Proportional to 15,619.20, 21,551.97 and 8,904.84

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Solution

The fourth proportional to 15,619.20, 21,551.97 and 8,904.84 is: 12,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.20 : 21,551.97 = 8,904.84 : x
  2. Step 2: Convert to fraction form
    15,619.20/21,551.97 = 8,904.84/x
  3. Step 3: Cross multiply
    15,619.20x = 21,551.97 × 8,904.84
  4. Step 4: Simplify right side
    15,619.20x = 191,916,844.53
  5. Step 5: Solve for x
    x = 191,916,844.53/15,619.20
  6. Step 6: Final answer
    x = 12,287.24

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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.