Home / 10,008.06-13,812.39-5,815.50

Finding the Fourth Proportional to 10,008.06, 13,812.39 and 5,815.50

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Solution

The fourth proportional to 10,008.06, 13,812.39 and 5,815.50 is: 8,026.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.06 : 13,812.39 = 5,815.50 : x
  2. Step 2: Convert to fraction form
    10,008.06/13,812.39 = 5,815.50/x
  3. Step 3: Cross multiply
    10,008.06x = 13,812.39 × 5,815.50
  4. Step 4: Simplify right side
    10,008.06x = 80,325,954.05
  5. Step 5: Solve for x
    x = 80,325,954.05/10,008.06
  6. Step 6: Final answer
    x = 8,026.13

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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.