Home / 13,426.29-20,145.14-7,184.69

Finding the Fourth Proportional to 13,426.29, 20,145.14 and 7,184.69

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Solution

The fourth proportional to 13,426.29, 20,145.14 and 7,184.69 is: 10,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.29 : 20,145.14 = 7,184.69 : x
  2. Step 2: Convert to fraction form
    13,426.29/20,145.14 = 7,184.69/x
  3. Step 3: Cross multiply
    13,426.29x = 20,145.14 × 7,184.69
  4. Step 4: Simplify right side
    13,426.29x = 144,736,585.91
  5. Step 5: Solve for x
    x = 144,736,585.91/13,426.29
  6. Step 6: Final answer
    x = 10,780.09

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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.