Home / 15,553.22-21,455.69-10,246.10

Finding the Fourth Proportional to 15,553.22, 21,455.69 and 10,246.10

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Solution

The fourth proportional to 15,553.22, 21,455.69 and 10,246.10 is: 14,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.22 : 21,455.69 = 10,246.10 : x
  2. Step 2: Convert to fraction form
    15,553.22/21,455.69 = 10,246.10/x
  3. Step 3: Cross multiply
    15,553.22x = 21,455.69 × 10,246.10
  4. Step 4: Simplify right side
    15,553.22x = 219,836,986.80
  5. Step 5: Solve for x
    x = 219,836,986.80/15,553.22
  6. Step 6: Final answer
    x = 14,134.50

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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.