Home / 15,377.94-21,219.30-8,662.23

Finding the Fourth Proportional to 15,377.94, 21,219.30 and 8,662.23

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Solution

The fourth proportional to 15,377.94, 21,219.30 and 8,662.23 is: 11,952.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.94 : 21,219.30 = 8,662.23 : x
  2. Step 2: Convert to fraction form
    15,377.94/21,219.30 = 8,662.23/x
  3. Step 3: Cross multiply
    15,377.94x = 21,219.30 × 8,662.23
  4. Step 4: Simplify right side
    15,377.94x = 183,806,457.04
  5. Step 5: Solve for x
    x = 183,806,457.04/15,377.94
  6. Step 6: Final answer
    x = 11,952.61

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Double scale
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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.