Home / 18,923.28-26,115.32-10,539.76

Finding the Fourth Proportional to 18,923.28, 26,115.32 and 10,539.76

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Solution

The fourth proportional to 18,923.28, 26,115.32 and 10,539.76 is: 14,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.28 : 26,115.32 = 10,539.76 : x
  2. Step 2: Convert to fraction form
    18,923.28/26,115.32 = 10,539.76/x
  3. Step 3: Cross multiply
    18,923.28x = 26,115.32 × 10,539.76
  4. Step 4: Simplify right side
    18,923.28x = 275,249,205.12
  5. Step 5: Solve for x
    x = 275,249,205.12/18,923.28
  6. Step 6: Final answer
    x = 14,545.53

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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.