Home / 12,570.78-18,856.23-4,250.85

Finding the Fourth Proportional to 12,570.78, 18,856.23 and 4,250.85

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Solution

The fourth proportional to 12,570.78, 18,856.23 and 4,250.85 is: 6,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.78 : 18,856.23 = 4,250.85 : x
  2. Step 2: Convert to fraction form
    12,570.78/18,856.23 = 4,250.85/x
  3. Step 3: Cross multiply
    12,570.78x = 18,856.23 × 4,250.85
  4. Step 4: Simplify right side
    12,570.78x = 80,155,005.30
  5. Step 5: Solve for x
    x = 80,155,005.30/12,570.78
  6. Step 6: Final answer
    x = 6,376.30

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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.