Home / 13,426.44-18,545.91-10,220.25

Finding the Fourth Proportional to 13,426.44, 18,545.91 and 10,220.25

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Solution

The fourth proportional to 13,426.44, 18,545.91 and 10,220.25 is: 14,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.44 : 18,545.91 = 10,220.25 : x
  2. Step 2: Convert to fraction form
    13,426.44/18,545.91 = 10,220.25/x
  3. Step 3: Cross multiply
    13,426.44x = 18,545.91 × 10,220.25
  4. Step 4: Simplify right side
    13,426.44x = 189,543,836.68
  5. Step 5: Solve for x
    x = 189,543,836.68/13,426.44
  6. Step 6: Final answer
    x = 14,117.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.