Home / 18,398.52-25,389.92-10,015.08

Finding the Fourth Proportional to 18,398.52, 25,389.92 and 10,015.08

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Solution

The fourth proportional to 18,398.52, 25,389.92 and 10,015.08 is: 13,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.52 : 25,389.92 = 10,015.08 : x
  2. Step 2: Convert to fraction form
    18,398.52/25,389.92 = 10,015.08/x
  3. Step 3: Cross multiply
    18,398.52x = 25,389.92 × 10,015.08
  4. Step 4: Simplify right side
    18,398.52x = 254,282,079.99
  5. Step 5: Solve for x
    x = 254,282,079.99/18,398.52
  6. Step 6: Final answer
    x = 13,820.79

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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.