Home / 12,915.08-17,828.22-10,935.88

Finding the Fourth Proportional to 12,915.08, 17,828.22 and 10,935.88

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Solution

The fourth proportional to 12,915.08, 17,828.22 and 10,935.88 is: 15,096.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.08 : 17,828.22 = 10,935.88 : x
  2. Step 2: Convert to fraction form
    12,915.08/17,828.22 = 10,935.88/x
  3. Step 3: Cross multiply
    12,915.08x = 17,828.22 × 10,935.88
  4. Step 4: Simplify right side
    12,915.08x = 194,967,274.53
  5. Step 5: Solve for x
    x = 194,967,274.53/12,915.08
  6. Step 6: Final answer
    x = 15,096.09

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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.