Home / 18,450.84-27,681.66-7,915.32

Finding the Fourth Proportional to 18,450.84, 27,681.66 and 7,915.32

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Solution

The fourth proportional to 18,450.84, 27,681.66 and 7,915.32 is: 11,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.84 : 27,681.66 = 7,915.32 : x
  2. Step 2: Convert to fraction form
    18,450.84/27,681.66 = 7,915.32/x
  3. Step 3: Cross multiply
    18,450.84x = 27,681.66 × 7,915.32
  4. Step 4: Simplify right side
    18,450.84x = 219,109,197.03
  5. Step 5: Solve for x
    x = 219,109,197.03/18,450.84
  6. Step 6: Final answer
    x = 11,875.30

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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.