Home / 12,455.12-18,649.71-10,273.58

Finding the Fourth Proportional to 12,455.12, 18,649.71 and 10,273.58

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Solution

The fourth proportional to 12,455.12, 18,649.71 and 10,273.58 is: 15,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.12 : 18,649.71 = 10,273.58 : x
  2. Step 2: Convert to fraction form
    12,455.12/18,649.71 = 10,273.58/x
  3. Step 3: Cross multiply
    12,455.12x = 18,649.71 × 10,273.58
  4. Step 4: Simplify right side
    12,455.12x = 191,599,287.66
  5. Step 5: Solve for x
    x = 191,599,287.66/12,455.12
  6. Step 6: Final answer
    x = 15,383.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.