Home / 12,570.89-18,856.33-3,210.58

Finding the Fourth Proportional to 12,570.89, 18,856.33 and 3,210.58

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Solution

The fourth proportional to 12,570.89, 18,856.33 and 3,210.58 is: 4,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.89 : 18,856.33 = 3,210.58 : x
  2. Step 2: Convert to fraction form
    12,570.89/18,856.33 = 3,210.58/x
  3. Step 3: Cross multiply
    12,570.89x = 18,856.33 × 3,210.58
  4. Step 4: Simplify right side
    12,570.89x = 60,539,665.45
  5. Step 5: Solve for x
    x = 60,539,665.45/12,570.89
  6. Step 6: Final answer
    x = 4,815.86

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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.