Home / 10,908.99-15,050.52-7,134.35

Finding the Fourth Proportional to 10,908.99, 15,050.52 and 7,134.35

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Solution

The fourth proportional to 10,908.99, 15,050.52 and 7,134.35 is: 9,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.99 : 15,050.52 = 7,134.35 : x
  2. Step 2: Convert to fraction form
    10,908.99/15,050.52 = 7,134.35/x
  3. Step 3: Cross multiply
    10,908.99x = 15,050.52 × 7,134.35
  4. Step 4: Simplify right side
    10,908.99x = 107,375,602.11
  5. Step 5: Solve for x
    x = 107,375,602.11/10,908.99
  6. Step 6: Final answer
    x = 9,842.85

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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.