Home / 15,898.33-21,945.59-13,651.18

Finding the Fourth Proportional to 15,898.33, 21,945.59 and 13,651.18

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Solution

The fourth proportional to 15,898.33, 21,945.59 and 13,651.18 is: 18,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.33 : 21,945.59 = 13,651.18 : x
  2. Step 2: Convert to fraction form
    15,898.33/21,945.59 = 13,651.18/x
  3. Step 3: Cross multiply
    15,898.33x = 21,945.59 × 13,651.18
  4. Step 4: Simplify right side
    15,898.33x = 299,583,199.30
  5. Step 5: Solve for x
    x = 299,583,199.30/15,898.33
  6. Step 6: Final answer
    x = 18,843.69

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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.