Home / 15,900.36-21,941.82-8,827.23

Finding the Fourth Proportional to 15,900.36, 21,941.82 and 8,827.23

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Solution

The fourth proportional to 15,900.36, 21,941.82 and 8,827.23 is: 12,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.36 : 21,941.82 = 8,827.23 : x
  2. Step 2: Convert to fraction form
    15,900.36/21,941.82 = 8,827.23/x
  3. Step 3: Cross multiply
    15,900.36x = 21,941.82 × 8,827.23
  4. Step 4: Simplify right side
    15,900.36x = 193,685,491.76
  5. Step 5: Solve for x
    x = 193,685,491.76/15,900.36
  6. Step 6: Final answer
    x = 12,181.20

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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.