Home / 9,360.40-12,917.16-5,111.59

Finding the Fourth Proportional to 9,360.40, 12,917.16 and 5,111.59

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Solution

The fourth proportional to 9,360.40, 12,917.16 and 5,111.59 is: 7,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.40 : 12,917.16 = 5,111.59 : x
  2. Step 2: Convert to fraction form
    9,360.40/12,917.16 = 5,111.59/x
  3. Step 3: Cross multiply
    9,360.40x = 12,917.16 × 5,111.59
  4. Step 4: Simplify right side
    9,360.40x = 66,027,225.88
  5. Step 5: Solve for x
    x = 66,027,225.88/9,360.40
  6. Step 6: Final answer
    x = 7,053.89

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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.