Home / 13,197.04-19,768.02-7,915.30

Finding the Fourth Proportional to 13,197.04, 19,768.02 and 7,915.30

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Solution

The fourth proportional to 13,197.04, 19,768.02 and 7,915.30 is: 11,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.04 : 19,768.02 = 7,915.30 : x
  2. Step 2: Convert to fraction form
    13,197.04/19,768.02 = 7,915.30/x
  3. Step 3: Cross multiply
    13,197.04x = 19,768.02 × 7,915.30
  4. Step 4: Simplify right side
    13,197.04x = 156,469,808.71
  5. Step 5: Solve for x
    x = 156,469,808.71/13,197.04
  6. Step 6: Final answer
    x = 11,856.43

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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.