Home / 18,403.07-25,398.50-10,447.83

Finding the Fourth Proportional to 18,403.07, 25,398.50 and 10,447.83

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Solution

The fourth proportional to 18,403.07, 25,398.50 and 10,447.83 is: 14,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.07 : 25,398.50 = 10,447.83 : x
  2. Step 2: Convert to fraction form
    18,403.07/25,398.50 = 10,447.83/x
  3. Step 3: Cross multiply
    18,403.07x = 25,398.50 × 10,447.83
  4. Step 4: Simplify right side
    18,403.07x = 265,359,158.02
  5. Step 5: Solve for x
    x = 265,359,158.02/18,403.07
  6. Step 6: Final answer
    x = 14,419.29

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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.