Home / 18,276.34-25,221.81-11,206.66

Finding the Fourth Proportional to 18,276.34, 25,221.81 and 11,206.66

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Solution

The fourth proportional to 18,276.34, 25,221.81 and 11,206.66 is: 15,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.34 : 25,221.81 = 11,206.66 : x
  2. Step 2: Convert to fraction form
    18,276.34/25,221.81 = 11,206.66/x
  3. Step 3: Cross multiply
    18,276.34x = 25,221.81 × 11,206.66
  4. Step 4: Simplify right side
    18,276.34x = 282,652,249.25
  5. Step 5: Solve for x
    x = 282,652,249.25/18,276.34
  6. Step 6: Final answer
    x = 15,465.47

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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.