Home / 7,416.80-11,125.20-4,911.20

Finding the Fourth Proportional to 7,416.80, 11,125.20 and 4,911.20

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Solution

The fourth proportional to 7,416.80, 11,125.20 and 4,911.20 is: 7,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.80 : 11,125.20 = 4,911.20 : x
  2. Step 2: Convert to fraction form
    7,416.80/11,125.20 = 4,911.20/x
  3. Step 3: Cross multiply
    7,416.80x = 11,125.20 × 4,911.20
  4. Step 4: Simplify right side
    7,416.80x = 54,638,082.24
  5. Step 5: Solve for x
    x = 54,638,082.24/7,416.80
  6. Step 6: Final answer
    x = 7,366.80

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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.