Home / 13,503.71-20,256.96-4,143.62

Finding the Fourth Proportional to 13,503.71, 20,256.96 and 4,143.62

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Solution

The fourth proportional to 13,503.71, 20,256.96 and 4,143.62 is: 6,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.71 : 20,256.96 = 4,143.62 : x
  2. Step 2: Convert to fraction form
    13,503.71/20,256.96 = 4,143.62/x
  3. Step 3: Cross multiply
    13,503.71x = 20,256.96 × 4,143.62
  4. Step 4: Simplify right side
    13,503.71x = 83,937,144.60
  5. Step 5: Solve for x
    x = 83,937,144.60/13,503.71
  6. Step 6: Final answer
    x = 6,215.86

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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.