Home / 15,690.44-21,623.60-10,654.87

Finding the Fourth Proportional to 15,690.44, 21,623.60 and 10,654.87

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Solution

The fourth proportional to 15,690.44, 21,623.60 and 10,654.87 is: 14,683.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.44 : 21,623.60 = 10,654.87 : x
  2. Step 2: Convert to fraction form
    15,690.44/21,623.60 = 10,654.87/x
  3. Step 3: Cross multiply
    15,690.44x = 21,623.60 × 10,654.87
  4. Step 4: Simplify right side
    15,690.44x = 230,396,728.58
  5. Step 5: Solve for x
    x = 230,396,728.58/15,690.44
  6. Step 6: Final answer
    x = 14,683.89

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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.