Home / 10,520.01-15,778.80-3,124.44

Finding the Fourth Proportional to 10,520.01, 15,778.80 and 3,124.44

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Solution

The fourth proportional to 10,520.01, 15,778.80 and 3,124.44 is: 4,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.01 : 15,778.80 = 3,124.44 : x
  2. Step 2: Convert to fraction form
    10,520.01/15,778.80 = 3,124.44/x
  3. Step 3: Cross multiply
    10,520.01x = 15,778.80 × 3,124.44
  4. Step 4: Simplify right side
    10,520.01x = 49,299,913.87
  5. Step 5: Solve for x
    x = 49,299,913.87/10,520.01
  6. Step 6: Final answer
    x = 4,686.30

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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.