Home / 7,521.87-10,380.77-4,165.00

Finding the Fourth Proportional to 7,521.87, 10,380.77 and 4,165.00

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Solution

The fourth proportional to 7,521.87, 10,380.77 and 4,165.00 is: 5,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.87 : 10,380.77 = 4,165.00 : x
  2. Step 2: Convert to fraction form
    7,521.87/10,380.77 = 4,165.00/x
  3. Step 3: Cross multiply
    7,521.87x = 10,380.77 × 4,165.00
  4. Step 4: Simplify right side
    7,521.87x = 43,235,860.27
  5. Step 5: Solve for x
    x = 43,235,860.27/7,521.87
  6. Step 6: Final answer
    x = 5,748.02

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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.