Home / 14,816.22-20,438.68-10,778.50

Finding the Fourth Proportional to 14,816.22, 20,438.68 and 10,778.50

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Solution

The fourth proportional to 14,816.22, 20,438.68 and 10,778.50 is: 14,868.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.22 : 20,438.68 = 10,778.50 : x
  2. Step 2: Convert to fraction form
    14,816.22/20,438.68 = 10,778.50/x
  3. Step 3: Cross multiply
    14,816.22x = 20,438.68 × 10,778.50
  4. Step 4: Simplify right side
    14,816.22x = 220,298,312.38
  5. Step 5: Solve for x
    x = 220,298,312.38/14,816.22
  6. Step 6: Final answer
    x = 14,868.73

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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.