Home / 13,626.40-20,434.80-6,234.40

Finding the Fourth Proportional to 13,626.40, 20,434.80 and 6,234.40

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Solution

The fourth proportional to 13,626.40, 20,434.80 and 6,234.40 is: 9,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.40 : 20,434.80 = 6,234.40 : x
  2. Step 2: Convert to fraction form
    13,626.40/20,434.80 = 6,234.40/x
  3. Step 3: Cross multiply
    13,626.40x = 20,434.80 × 6,234.40
  4. Step 4: Simplify right side
    13,626.40x = 127,398,717.12
  5. Step 5: Solve for x
    x = 127,398,717.12/13,626.40
  6. Step 6: Final answer
    x = 9,349.40

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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.