Home / 15,489.09-23,214.60-7,157.85

Finding the Fourth Proportional to 15,489.09, 23,214.60 and 7,157.85

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Solution

The fourth proportional to 15,489.09, 23,214.60 and 7,157.85 is: 10,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.09 : 23,214.60 = 7,157.85 : x
  2. Step 2: Convert to fraction form
    15,489.09/23,214.60 = 7,157.85/x
  3. Step 3: Cross multiply
    15,489.09x = 23,214.60 × 7,157.85
  4. Step 4: Simplify right side
    15,489.09x = 166,166,624.61
  5. Step 5: Solve for x
    x = 166,166,624.61/15,489.09
  6. Step 6: Final answer
    x = 10,727.98

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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.