Home / 12,897.46-19,320.27-6,728.50

Finding the Fourth Proportional to 12,897.46, 19,320.27 and 6,728.50

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Solution

The fourth proportional to 12,897.46, 19,320.27 and 6,728.50 is: 10,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.46 : 19,320.27 = 6,728.50 : x
  2. Step 2: Convert to fraction form
    12,897.46/19,320.27 = 6,728.50/x
  3. Step 3: Cross multiply
    12,897.46x = 19,320.27 × 6,728.50
  4. Step 4: Simplify right side
    12,897.46x = 129,996,436.70
  5. Step 5: Solve for x
    x = 129,996,436.70/12,897.46
  6. Step 6: Final answer
    x = 10,079.23

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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.