Home / 12,742.52-17,584.29-7,153.52

Finding the Fourth Proportional to 12,742.52, 17,584.29 and 7,153.52

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Solution

The fourth proportional to 12,742.52, 17,584.29 and 7,153.52 is: 9,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.52 : 17,584.29 = 7,153.52 : x
  2. Step 2: Convert to fraction form
    12,742.52/17,584.29 = 7,153.52/x
  3. Step 3: Cross multiply
    12,742.52x = 17,584.29 × 7,153.52
  4. Step 4: Simplify right side
    12,742.52x = 125,789,482.28
  5. Step 5: Solve for x
    x = 125,789,482.28/12,742.52
  6. Step 6: Final answer
    x = 9,871.64

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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.