Home / 9,287.99-12,817.43-5,309.19

Finding the Fourth Proportional to 9,287.99, 12,817.43 and 5,309.19

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Solution

The fourth proportional to 9,287.99, 12,817.43 and 5,309.19 is: 7,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.99 : 12,817.43 = 5,309.19 : x
  2. Step 2: Convert to fraction form
    9,287.99/12,817.43 = 5,309.19/x
  3. Step 3: Cross multiply
    9,287.99x = 12,817.43 × 5,309.19
  4. Step 4: Simplify right side
    9,287.99x = 68,050,203.23
  5. Step 5: Solve for x
    x = 68,050,203.23/9,287.99
  6. Step 6: Final answer
    x = 7,326.69

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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.