Home / 13,417.80-20,105.10-6,834.12

Finding the Fourth Proportional to 13,417.80, 20,105.10 and 6,834.12

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Solution

The fourth proportional to 13,417.80, 20,105.10 and 6,834.12 is: 10,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.80 : 20,105.10 = 6,834.12 : x
  2. Step 2: Convert to fraction form
    13,417.80/20,105.10 = 6,834.12/x
  3. Step 3: Cross multiply
    13,417.80x = 20,105.10 × 6,834.12
  4. Step 4: Simplify right side
    13,417.80x = 137,400,666.01
  5. Step 5: Solve for x
    x = 137,400,666.01/13,417.80
  6. Step 6: Final answer
    x = 10,240.18

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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.