Home / 10,423.75-15,636.07-3,403.70

Finding the Fourth Proportional to 10,423.75, 15,636.07 and 3,403.70

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Solution

The fourth proportional to 10,423.75, 15,636.07 and 3,403.70 is: 5,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.75 : 15,636.07 = 3,403.70 : x
  2. Step 2: Convert to fraction form
    10,423.75/15,636.07 = 3,403.70/x
  3. Step 3: Cross multiply
    10,423.75x = 15,636.07 × 3,403.70
  4. Step 4: Simplify right side
    10,423.75x = 53,220,539.06
  5. Step 5: Solve for x
    x = 53,220,539.06/10,423.75
  6. Step 6: Final answer
    x = 5,105.70

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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.