Home / 12,897.59-19,320.46-6,728.63

Finding the Fourth Proportional to 12,897.59, 19,320.46 and 6,728.63

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Solution

The fourth proportional to 12,897.59, 19,320.46 and 6,728.63 is: 10,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.59 : 19,320.46 = 6,728.63 : x
  2. Step 2: Convert to fraction form
    12,897.59/19,320.46 = 6,728.63/x
  3. Step 3: Cross multiply
    12,897.59x = 19,320.46 × 6,728.63
  4. Step 4: Simplify right side
    12,897.59x = 130,000,113.35
  5. Step 5: Solve for x
    x = 130,000,113.35/12,897.59
  6. Step 6: Final answer
    x = 10,079.42

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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.