Home / 18,922.40-26,111.04-10,538.72

Finding the Fourth Proportional to 18,922.40, 26,111.04 and 10,538.72

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Solution

The fourth proportional to 18,922.40, 26,111.04 and 10,538.72 is: 14,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.40 : 26,111.04 = 10,538.72 : x
  2. Step 2: Convert to fraction form
    18,922.40/26,111.04 = 10,538.72/x
  3. Step 3: Cross multiply
    18,922.40x = 26,111.04 × 10,538.72
  4. Step 4: Simplify right side
    18,922.40x = 275,176,939.47
  5. Step 5: Solve for x
    x = 275,176,939.47/18,922.40
  6. Step 6: Final answer
    x = 14,542.39

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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.