Home / 11,396.34-15,729.39-6,681.60

Finding the Fourth Proportional to 11,396.34, 15,729.39 and 6,681.60

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Solution

The fourth proportional to 11,396.34, 15,729.39 and 6,681.60 is: 9,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.34 : 15,729.39 = 6,681.60 : x
  2. Step 2: Convert to fraction form
    11,396.34/15,729.39 = 6,681.60/x
  3. Step 3: Cross multiply
    11,396.34x = 15,729.39 × 6,681.60
  4. Step 4: Simplify right side
    11,396.34x = 105,097,492.22
  5. Step 5: Solve for x
    x = 105,097,492.22/11,396.34
  6. Step 6: Final answer
    x = 9,222.04

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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.