Home / 12,817.95-19,215.46-6,897.99

Finding the Fourth Proportional to 12,817.95, 19,215.46 and 6,897.99

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Solution

The fourth proportional to 12,817.95, 19,215.46 and 6,897.99 is: 10,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.95 : 19,215.46 = 6,897.99 : x
  2. Step 2: Convert to fraction form
    12,817.95/19,215.46 = 6,897.99/x
  3. Step 3: Cross multiply
    12,817.95x = 19,215.46 × 6,897.99
  4. Step 4: Simplify right side
    12,817.95x = 132,548,131.61
  5. Step 5: Solve for x
    x = 132,548,131.61/12,817.95
  6. Step 6: Final answer
    x = 10,340.82

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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.