Home / 15,238.83-21,027.66-8,867.49

Finding the Fourth Proportional to 15,238.83, 21,027.66 and 8,867.49

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Solution

The fourth proportional to 15,238.83, 21,027.66 and 8,867.49 is: 12,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.83 : 21,027.66 = 8,867.49 : x
  2. Step 2: Convert to fraction form
    15,238.83/21,027.66 = 8,867.49/x
  3. Step 3: Cross multiply
    15,238.83x = 21,027.66 × 8,867.49
  4. Step 4: Simplify right side
    15,238.83x = 186,462,544.59
  5. Step 5: Solve for x
    x = 186,462,544.59/15,238.83
  6. Step 6: Final answer
    x = 12,236.01

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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.