Home / 11,395.79-15,727.25-6,360.47

Finding the Fourth Proportional to 11,395.79, 15,727.25 and 6,360.47

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Solution

The fourth proportional to 11,395.79, 15,727.25 and 6,360.47 is: 8,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.79 : 15,727.25 = 6,360.47 : x
  2. Step 2: Convert to fraction form
    11,395.79/15,727.25 = 6,360.47/x
  3. Step 3: Cross multiply
    11,395.79x = 15,727.25 × 6,360.47
  4. Step 4: Simplify right side
    11,395.79x = 100,032,639.07
  5. Step 5: Solve for x
    x = 100,032,639.07/11,395.79
  6. Step 6: Final answer
    x = 8,778.04

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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.