Home / 9,360.74-12,917.72-5,111.79

Finding the Fourth Proportional to 9,360.74, 12,917.72 and 5,111.79

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Solution

The fourth proportional to 9,360.74, 12,917.72 and 5,111.79 is: 7,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.74 : 12,917.72 = 5,111.79 : x
  2. Step 2: Convert to fraction form
    9,360.74/12,917.72 = 5,111.79/x
  3. Step 3: Cross multiply
    9,360.74x = 12,917.72 × 5,111.79
  4. Step 4: Simplify right side
    9,360.74x = 66,032,671.92
  5. Step 5: Solve for x
    x = 66,032,671.92/9,360.74
  6. Step 6: Final answer
    x = 7,054.21

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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.