Home / 13,719.86-20,579.98-9,069.74

Finding the Fourth Proportional to 13,719.86, 20,579.98 and 9,069.74

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Solution

The fourth proportional to 13,719.86, 20,579.98 and 9,069.74 is: 13,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.86 : 20,579.98 = 9,069.74 : x
  2. Step 2: Convert to fraction form
    13,719.86/20,579.98 = 9,069.74/x
  3. Step 3: Cross multiply
    13,719.86x = 20,579.98 × 9,069.74
  4. Step 4: Simplify right side
    13,719.86x = 186,655,067.81
  5. Step 5: Solve for x
    x = 186,655,067.81/13,719.86
  6. Step 6: Final answer
    x = 13,604.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.