Home / 12,988.28-19,485.30-6,059

Finding the Fourth Proportional to 12,988.28, 19,485.30 and 6,059

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Solution

The fourth proportional to 12,988.28, 19,485.30 and 6,059 is: 9,089.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.28 : 19,485.30 = 6,059 : x
  2. Step 2: Convert to fraction form
    12,988.28/19,485.30 = 6,059/x
  3. Step 3: Cross multiply
    12,988.28x = 19,485.30 × 6,059
  4. Step 4: Simplify right side
    12,988.28x = 118,061,432.70
  5. Step 5: Solve for x
    x = 118,061,432.70/12,988.28
  6. Step 6: Final answer
    x = 9,089.84

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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.