Home / 7,515.53-11,290.77-4,712.99

Finding the Fourth Proportional to 7,515.53, 11,290.77 and 4,712.99

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Solution

The fourth proportional to 7,515.53, 11,290.77 and 4,712.99 is: 7,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.53 : 11,290.77 = 4,712.99 : x
  2. Step 2: Convert to fraction form
    7,515.53/11,290.77 = 4,712.99/x
  3. Step 3: Cross multiply
    7,515.53x = 11,290.77 × 4,712.99
  4. Step 4: Simplify right side
    7,515.53x = 53,213,216.39
  5. Step 5: Solve for x
    x = 53,213,216.39/7,515.53
  6. Step 6: Final answer
    x = 7,080.43

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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.