Home / 18,869.88-26,036.46-10,486.20

Finding the Fourth Proportional to 18,869.88, 26,036.46 and 10,486.20

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Solution

The fourth proportional to 18,869.88, 26,036.46 and 10,486.20 is: 14,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.88 : 26,036.46 = 10,486.20 : x
  2. Step 2: Convert to fraction form
    18,869.88/26,036.46 = 10,486.20/x
  3. Step 3: Cross multiply
    18,869.88x = 26,036.46 × 10,486.20
  4. Step 4: Simplify right side
    18,869.88x = 273,023,526.85
  5. Step 5: Solve for x
    x = 273,023,526.85/18,869.88
  6. Step 6: Final answer
    x = 14,468.75

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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.