Home / 10,423.38-15,636.85-3,401.39

Finding the Fourth Proportional to 10,423.38, 15,636.85 and 3,401.39

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Solution

The fourth proportional to 10,423.38, 15,636.85 and 3,401.39 is: 5,102.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.38 : 15,636.85 = 3,401.39 : x
  2. Step 2: Convert to fraction form
    10,423.38/15,636.85 = 3,401.39/x
  3. Step 3: Cross multiply
    10,423.38x = 15,636.85 × 3,401.39
  4. Step 4: Simplify right side
    10,423.38x = 53,187,055.81
  5. Step 5: Solve for x
    x = 53,187,055.81/10,423.38
  6. Step 6: Final answer
    x = 5,102.67

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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.