Home / 9,128.63-13,694.28-2,887.22

Finding the Fourth Proportional to 9,128.63, 13,694.28 and 2,887.22

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Solution

The fourth proportional to 9,128.63, 13,694.28 and 2,887.22 is: 4,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.63 : 13,694.28 = 2,887.22 : x
  2. Step 2: Convert to fraction form
    9,128.63/13,694.28 = 2,887.22/x
  3. Step 3: Cross multiply
    9,128.63x = 13,694.28 × 2,887.22
  4. Step 4: Simplify right side
    9,128.63x = 39,538,399.10
  5. Step 5: Solve for x
    x = 39,538,399.10/9,128.63
  6. Step 6: Final answer
    x = 4,331.25

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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.