Home / 16,365.60-22,586.67-9,990.87

Finding the Fourth Proportional to 16,365.60, 22,586.67 and 9,990.87

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Solution

The fourth proportional to 16,365.60, 22,586.67 and 9,990.87 is: 13,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,365.60 : 22,586.67 = 9,990.87 : x
  2. Step 2: Convert to fraction form
    16,365.60/22,586.67 = 9,990.87/x
  3. Step 3: Cross multiply
    16,365.60x = 22,586.67 × 9,990.87
  4. Step 4: Simplify right side
    16,365.60x = 225,660,483.70
  5. Step 5: Solve for x
    x = 225,660,483.70/16,365.60
  6. Step 6: Final answer
    x = 13,788.71

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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.