Home / 13,515.05-20,275.09-4,154.87

Finding the Fourth Proportional to 13,515.05, 20,275.09 and 4,154.87

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Solution

The fourth proportional to 13,515.05, 20,275.09 and 4,154.87 is: 6,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.05 : 20,275.09 = 4,154.87 : x
  2. Step 2: Convert to fraction form
    13,515.05/20,275.09 = 4,154.87/x
  3. Step 3: Cross multiply
    13,515.05x = 20,275.09 × 4,154.87
  4. Step 4: Simplify right side
    13,515.05x = 84,240,363.19
  5. Step 5: Solve for x
    x = 84,240,363.19/13,515.05
  6. Step 6: Final answer
    x = 6,233.08

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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.