Home / 13,402.79-20,099.35-4,516.21

Finding the Fourth Proportional to 13,402.79, 20,099.35 and 4,516.21

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Solution

The fourth proportional to 13,402.79, 20,099.35 and 4,516.21 is: 6,772.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.79 : 20,099.35 = 4,516.21 : x
  2. Step 2: Convert to fraction form
    13,402.79/20,099.35 = 4,516.21/x
  3. Step 3: Cross multiply
    13,402.79x = 20,099.35 × 4,516.21
  4. Step 4: Simplify right side
    13,402.79x = 90,772,823.92
  5. Step 5: Solve for x
    x = 90,772,823.92/13,402.79
  6. Step 6: Final answer
    x = 6,772.68

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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.