Home / 9,127.34-13,691.77-2,887.21

Finding the Fourth Proportional to 9,127.34, 13,691.77 and 2,887.21

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Solution

The fourth proportional to 9,127.34, 13,691.77 and 2,887.21 is: 4,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.34 : 13,691.77 = 2,887.21 : x
  2. Step 2: Convert to fraction form
    9,127.34/13,691.77 = 2,887.21/x
  3. Step 3: Cross multiply
    9,127.34x = 13,691.77 × 2,887.21
  4. Step 4: Simplify right side
    9,127.34x = 39,530,973.81
  5. Step 5: Solve for x
    x = 39,530,973.81/9,127.34
  6. Step 6: Final answer
    x = 4,331.05

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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.