Home / 9,360.11-12,917.48-5,111.57

Finding the Fourth Proportional to 9,360.11, 12,917.48 and 5,111.57

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Solution

The fourth proportional to 9,360.11, 12,917.48 and 5,111.57 is: 7,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.11 : 12,917.48 = 5,111.57 : x
  2. Step 2: Convert to fraction form
    9,360.11/12,917.48 = 5,111.57/x
  3. Step 3: Cross multiply
    9,360.11x = 12,917.48 × 5,111.57
  4. Step 4: Simplify right side
    9,360.11x = 66,028,558.17
  5. Step 5: Solve for x
    x = 66,028,558.17/9,360.11
  6. Step 6: Final answer
    x = 7,054.25

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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.