Home / 7,813.16-11,712.70-2,881.58

Finding the Fourth Proportional to 7,813.16, 11,712.70 and 2,881.58

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Solution

The fourth proportional to 7,813.16, 11,712.70 and 2,881.58 is: 4,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.16 : 11,712.70 = 2,881.58 : x
  2. Step 2: Convert to fraction form
    7,813.16/11,712.70 = 2,881.58/x
  3. Step 3: Cross multiply
    7,813.16x = 11,712.70 × 2,881.58
  4. Step 4: Simplify right side
    7,813.16x = 33,751,027.10
  5. Step 5: Solve for x
    x = 33,751,027.10/7,813.16
  6. Step 6: Final answer
    x = 4,319.77

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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.