Home / 9,915.36-13,683.60-5,935.68

Finding the Fourth Proportional to 9,915.36, 13,683.60 and 5,935.68

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Solution

The fourth proportional to 9,915.36, 13,683.60 and 5,935.68 is: 8,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.36 : 13,683.60 = 5,935.68 : x
  2. Step 2: Convert to fraction form
    9,915.36/13,683.60 = 5,935.68/x
  3. Step 3: Cross multiply
    9,915.36x = 13,683.60 × 5,935.68
  4. Step 4: Simplify right side
    9,915.36x = 81,221,470.85
  5. Step 5: Solve for x
    x = 81,221,470.85/9,915.36
  6. Step 6: Final answer
    x = 8,191.48

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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.