Home / 11,135.34-15,353.55-7,156.62

Finding the Fourth Proportional to 11,135.34, 15,353.55 and 7,156.62

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Solution

The fourth proportional to 11,135.34, 15,353.55 and 7,156.62 is: 9,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.34 : 15,353.55 = 7,156.62 : x
  2. Step 2: Convert to fraction form
    11,135.34/15,353.55 = 7,156.62/x
  3. Step 3: Cross multiply
    11,135.34x = 15,353.55 × 7,156.62
  4. Step 4: Simplify right side
    11,135.34x = 109,879,523.00
  5. Step 5: Solve for x
    x = 109,879,523.00/11,135.34
  6. Step 6: Final answer
    x = 9,867.64

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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.