Home / 13,417.61-20,132.11-7,176

Finding the Fourth Proportional to 13,417.61, 20,132.11 and 7,176

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Solution

The fourth proportional to 13,417.61, 20,132.11 and 7,176 is: 10,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.61 : 20,132.11 = 7,176 : x
  2. Step 2: Convert to fraction form
    13,417.61/20,132.11 = 7,176/x
  3. Step 3: Cross multiply
    13,417.61x = 20,132.11 × 7,176
  4. Step 4: Simplify right side
    13,417.61x = 144,468,003.42
  5. Step 5: Solve for x
    x = 144,468,003.42/13,417.61
  6. Step 6: Final answer
    x = 10,767.05

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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.