Home / 11,102.52-15,323.04-7,134.96

Finding the Fourth Proportional to 11,102.52, 15,323.04 and 7,134.96

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Solution

The fourth proportional to 11,102.52, 15,323.04 and 7,134.96 is: 9,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.52 : 15,323.04 = 7,134.96 : x
  2. Step 2: Convert to fraction form
    11,102.52/15,323.04 = 7,134.96/x
  3. Step 3: Cross multiply
    11,102.52x = 15,323.04 × 7,134.96
  4. Step 4: Simplify right side
    11,102.52x = 109,329,277.48
  5. Step 5: Solve for x
    x = 109,329,277.48/11,102.52
  6. Step 6: Final answer
    x = 9,847.25

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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.