Home / 10,050.64-15,078.52-3,125.20

Finding the Fourth Proportional to 10,050.64, 15,078.52 and 3,125.20

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Solution

The fourth proportional to 10,050.64, 15,078.52 and 3,125.20 is: 4,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,050.64 : 15,078.52 = 3,125.20 : x
  2. Step 2: Convert to fraction form
    10,050.64/15,078.52 = 3,125.20/x
  3. Step 3: Cross multiply
    10,050.64x = 15,078.52 × 3,125.20
  4. Step 4: Simplify right side
    10,050.64x = 47,123,390.70
  5. Step 5: Solve for x
    x = 47,123,390.70/10,050.64
  6. Step 6: Final answer
    x = 4,688.60

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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.