Home / 13,570.68-20,356.56-4,211.68

Finding the Fourth Proportional to 13,570.68, 20,356.56 and 4,211.68

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Solution

The fourth proportional to 13,570.68, 20,356.56 and 4,211.68 is: 6,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.68 : 20,356.56 = 4,211.68 : x
  2. Step 2: Convert to fraction form
    13,570.68/20,356.56 = 4,211.68/x
  3. Step 3: Cross multiply
    13,570.68x = 20,356.56 × 4,211.68
  4. Step 4: Simplify right side
    13,570.68x = 85,735,316.62
  5. Step 5: Solve for x
    x = 85,735,316.62/13,570.68
  6. Step 6: Final answer
    x = 6,317.69

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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.