Home / 13,405.62-20,110.05-4,638.18

Finding the Fourth Proportional to 13,405.62, 20,110.05 and 4,638.18

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Solution

The fourth proportional to 13,405.62, 20,110.05 and 4,638.18 is: 6,957.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.62 : 20,110.05 = 4,638.18 : x
  2. Step 2: Convert to fraction form
    13,405.62/20,110.05 = 4,638.18/x
  3. Step 3: Cross multiply
    13,405.62x = 20,110.05 × 4,638.18
  4. Step 4: Simplify right side
    13,405.62x = 93,274,031.71
  5. Step 5: Solve for x
    x = 93,274,031.71/13,405.62
  6. Step 6: Final answer
    x = 6,957.83

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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.