Home / 10,078.08-15,111.24-7,411.26

Finding the Fourth Proportional to 10,078.08, 15,111.24 and 7,411.26

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Solution

The fourth proportional to 10,078.08, 15,111.24 and 7,411.26 is: 11,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.08 : 15,111.24 = 7,411.26 : x
  2. Step 2: Convert to fraction form
    10,078.08/15,111.24 = 7,411.26/x
  3. Step 3: Cross multiply
    10,078.08x = 15,111.24 × 7,411.26
  4. Step 4: Simplify right side
    10,078.08x = 111,993,328.56
  5. Step 5: Solve for x
    x = 111,993,328.56/10,078.08
  6. Step 6: Final answer
    x = 11,112.57

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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.