Home / 11,395.19-17,095.51-5,155.21

Finding the Fourth Proportional to 11,395.19, 17,095.51 and 5,155.21

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Solution

The fourth proportional to 11,395.19, 17,095.51 and 5,155.21 is: 7,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.19 : 17,095.51 = 5,155.21 : x
  2. Step 2: Convert to fraction form
    11,395.19/17,095.51 = 5,155.21/x
  3. Step 3: Cross multiply
    11,395.19x = 17,095.51 × 5,155.21
  4. Step 4: Simplify right side
    11,395.19x = 88,130,971.92
  5. Step 5: Solve for x
    x = 88,130,971.92/11,395.19
  6. Step 6: Final answer
    x = 7,734.05

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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.