Home / 18,291.83-25,243.45-11,220.53

Finding the Fourth Proportional to 18,291.83, 25,243.45 and 11,220.53

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Solution

The fourth proportional to 18,291.83, 25,243.45 and 11,220.53 is: 15,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.83 : 25,243.45 = 11,220.53 : x
  2. Step 2: Convert to fraction form
    18,291.83/25,243.45 = 11,220.53/x
  3. Step 3: Cross multiply
    18,291.83x = 25,243.45 × 11,220.53
  4. Step 4: Simplify right side
    18,291.83x = 283,244,733.76
  5. Step 5: Solve for x
    x = 283,244,733.76/18,291.83
  6. Step 6: Final answer
    x = 15,484.77

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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.