Home / 10,712.79-16,041.24-8,621.37

Finding the Fourth Proportional to 10,712.79, 16,041.24 and 8,621.37

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Solution

The fourth proportional to 10,712.79, 16,041.24 and 8,621.37 is: 12,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.79 : 16,041.24 = 8,621.37 : x
  2. Step 2: Convert to fraction form
    10,712.79/16,041.24 = 8,621.37/x
  3. Step 3: Cross multiply
    10,712.79x = 16,041.24 × 8,621.37
  4. Step 4: Simplify right side
    10,712.79x = 138,297,465.30
  5. Step 5: Solve for x
    x = 138,297,465.30/10,712.79
  6. Step 6: Final answer
    x = 12,909.57

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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.