Home / 18,903.15-26,086.45-10,406.13

Finding the Fourth Proportional to 18,903.15, 26,086.45 and 10,406.13

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Solution

The fourth proportional to 18,903.15, 26,086.45 and 10,406.13 is: 14,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.15 : 26,086.45 = 10,406.13 : x
  2. Step 2: Convert to fraction form
    18,903.15/26,086.45 = 10,406.13/x
  3. Step 3: Cross multiply
    18,903.15x = 26,086.45 × 10,406.13
  4. Step 4: Simplify right side
    18,903.15x = 271,458,963.92
  5. Step 5: Solve for x
    x = 271,458,963.92/18,903.15
  6. Step 6: Final answer
    x = 14,360.51

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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.