Home / 15,426.69-21,268.23-11,582.05

Finding the Fourth Proportional to 15,426.69, 21,268.23 and 11,582.05

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Solution

The fourth proportional to 15,426.69, 21,268.23 and 11,582.05 is: 15,967.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.69 : 21,268.23 = 11,582.05 : x
  2. Step 2: Convert to fraction form
    15,426.69/21,268.23 = 11,582.05/x
  3. Step 3: Cross multiply
    15,426.69x = 21,268.23 × 11,582.05
  4. Step 4: Simplify right side
    15,426.69x = 246,329,596.93
  5. Step 5: Solve for x
    x = 246,329,596.93/15,426.69
  6. Step 6: Final answer
    x = 15,967.75

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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.