Home / 13,626.12-20,434.56-4,859.76

Finding the Fourth Proportional to 13,626.12, 20,434.56 and 4,859.76

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Solution

The fourth proportional to 13,626.12, 20,434.56 and 4,859.76 is: 7,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.12 : 20,434.56 = 4,859.76 : x
  2. Step 2: Convert to fraction form
    13,626.12/20,434.56 = 4,859.76/x
  3. Step 3: Cross multiply
    13,626.12x = 20,434.56 × 4,859.76
  4. Step 4: Simplify right side
    13,626.12x = 99,307,057.31
  5. Step 5: Solve for x
    x = 99,307,057.31/13,626.12
  6. Step 6: Final answer
    x = 7,287.99

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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.