Home / 11,078.10-15,291.45-6,603.26

Finding the Fourth Proportional to 11,078.10, 15,291.45 and 6,603.26

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Solution

The fourth proportional to 11,078.10, 15,291.45 and 6,603.26 is: 9,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.10 : 15,291.45 = 6,603.26 : x
  2. Step 2: Convert to fraction form
    11,078.10/15,291.45 = 6,603.26/x
  3. Step 3: Cross multiply
    11,078.10x = 15,291.45 × 6,603.26
  4. Step 4: Simplify right side
    11,078.10x = 100,973,343.67
  5. Step 5: Solve for x
    x = 100,973,343.67/11,078.10
  6. Step 6: Final answer
    x = 9,114.68

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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.