Home / 9,291.99-12,818.77-5,515.32

Finding the Fourth Proportional to 9,291.99, 12,818.77 and 5,515.32

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Solution

The fourth proportional to 9,291.99, 12,818.77 and 5,515.32 is: 7,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.99 : 12,818.77 = 5,515.32 : x
  2. Step 2: Convert to fraction form
    9,291.99/12,818.77 = 5,515.32/x
  3. Step 3: Cross multiply
    9,291.99x = 12,818.77 × 5,515.32
  4. Step 4: Simplify right side
    9,291.99x = 70,699,618.56
  5. Step 5: Solve for x
    x = 70,699,618.56/9,291.99
  6. Step 6: Final answer
    x = 7,608.66

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Similar ratio
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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.