Home / 18,617.64-27,915.66-7,515.24

Finding the Fourth Proportional to 18,617.64, 27,915.66 and 7,515.24

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Solution

The fourth proportional to 18,617.64, 27,915.66 and 7,515.24 is: 11,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.64 : 27,915.66 = 7,515.24 : x
  2. Step 2: Convert to fraction form
    18,617.64/27,915.66 = 7,515.24/x
  3. Step 3: Cross multiply
    18,617.64x = 27,915.66 × 7,515.24
  4. Step 4: Simplify right side
    18,617.64x = 209,792,884.66
  5. Step 5: Solve for x
    x = 209,792,884.66/18,617.64
  6. Step 6: Final answer
    x = 11,268.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.