Home / 19,861.76-29,766.08-10,499.60

Finding the Fourth Proportional to 19,861.76, 29,766.08 and 10,499.60

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Solution

The fourth proportional to 19,861.76, 29,766.08 and 10,499.60 is: 15,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.76 : 29,766.08 = 10,499.60 : x
  2. Step 2: Convert to fraction form
    19,861.76/29,766.08 = 10,499.60/x
  3. Step 3: Cross multiply
    19,861.76x = 29,766.08 × 10,499.60
  4. Step 4: Simplify right side
    19,861.76x = 312,531,933.57
  5. Step 5: Solve for x
    x = 312,531,933.57/19,861.76
  6. Step 6: Final answer
    x = 15,735.36

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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.