Home / 11,176.70-15,430.61-7,403.10

Finding the Fourth Proportional to 11,176.70, 15,430.61 and 7,403.10

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Solution

The fourth proportional to 11,176.70, 15,430.61 and 7,403.10 is: 10,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.70 : 15,430.61 = 7,403.10 : x
  2. Step 2: Convert to fraction form
    11,176.70/15,430.61 = 7,403.10/x
  3. Step 3: Cross multiply
    11,176.70x = 15,430.61 × 7,403.10
  4. Step 4: Simplify right side
    11,176.70x = 114,234,348.89
  5. Step 5: Solve for x
    x = 114,234,348.89/11,176.70
  6. Step 6: Final answer
    x = 10,220.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.