Home / 18,707.01-25,818.96-11,153.80

Finding the Fourth Proportional to 18,707.01, 25,818.96 and 11,153.80

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Solution

The fourth proportional to 18,707.01, 25,818.96 and 11,153.80 is: 15,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.01 : 25,818.96 = 11,153.80 : x
  2. Step 2: Convert to fraction form
    18,707.01/25,818.96 = 11,153.80/x
  3. Step 3: Cross multiply
    18,707.01x = 25,818.96 × 11,153.80
  4. Step 4: Simplify right side
    18,707.01x = 287,979,516.05
  5. Step 5: Solve for x
    x = 287,979,516.05/18,707.01
  6. Step 6: Final answer
    x = 15,394.20

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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.