Home / 18,402.26-25,395.10-10,018.76

Finding the Fourth Proportional to 18,402.26, 25,395.10 and 10,018.76

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Solution

The fourth proportional to 18,402.26, 25,395.10 and 10,018.76 is: 13,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.26 : 25,395.10 = 10,018.76 : x
  2. Step 2: Convert to fraction form
    18,402.26/25,395.10 = 10,018.76/x
  3. Step 3: Cross multiply
    18,402.26x = 25,395.10 × 10,018.76
  4. Step 4: Simplify right side
    18,402.26x = 254,427,412.08
  5. Step 5: Solve for x
    x = 254,427,412.08/18,402.26
  6. Step 6: Final answer
    x = 13,825.88

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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.