Home / 14,545.14-21,820.13-5,190.55

Finding the Fourth Proportional to 14,545.14, 21,820.13 and 5,190.55

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Solution

The fourth proportional to 14,545.14, 21,820.13 and 5,190.55 is: 7,786.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.14 : 21,820.13 = 5,190.55 : x
  2. Step 2: Convert to fraction form
    14,545.14/21,820.13 = 5,190.55/x
  3. Step 3: Cross multiply
    14,545.14x = 21,820.13 × 5,190.55
  4. Step 4: Simplify right side
    14,545.14x = 113,258,475.77
  5. Step 5: Solve for x
    x = 113,258,475.77/14,545.14
  6. Step 6: Final answer
    x = 7,786.69

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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.