Home / 13,210.16-19,815.50-5,414.18

Finding the Fourth Proportional to 13,210.16, 19,815.50 and 5,414.18

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Solution

The fourth proportional to 13,210.16, 19,815.50 and 5,414.18 is: 8,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.16 : 19,815.50 = 5,414.18 : x
  2. Step 2: Convert to fraction form
    13,210.16/19,815.50 = 5,414.18/x
  3. Step 3: Cross multiply
    13,210.16x = 19,815.50 × 5,414.18
  4. Step 4: Simplify right side
    13,210.16x = 107,284,598.25
  5. Step 5: Solve for x
    x = 107,284,598.25/13,210.16
  6. Step 6: Final answer
    x = 8,121.37

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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.