Home / 11,507.30-15,880.29-6,727.66

Finding the Fourth Proportional to 11,507.30, 15,880.29 and 6,727.66

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Solution

The fourth proportional to 11,507.30, 15,880.29 and 6,727.66 is: 9,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.30 : 15,880.29 = 6,727.66 : x
  2. Step 2: Convert to fraction form
    11,507.30/15,880.29 = 6,727.66/x
  3. Step 3: Cross multiply
    11,507.30x = 15,880.29 × 6,727.66
  4. Step 4: Simplify right side
    11,507.30x = 106,837,126.89
  5. Step 5: Solve for x
    x = 106,837,126.89/11,507.30
  6. Step 6: Final answer
    x = 9,284.29

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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.