Home / 12,172.11-16,798.28-6,864.99

Finding the Fourth Proportional to 12,172.11, 16,798.28 and 6,864.99

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Solution

The fourth proportional to 12,172.11, 16,798.28 and 6,864.99 is: 9,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.11 : 16,798.28 = 6,864.99 : x
  2. Step 2: Convert to fraction form
    12,172.11/16,798.28 = 6,864.99/x
  3. Step 3: Cross multiply
    12,172.11x = 16,798.28 × 6,864.99
  4. Step 4: Simplify right side
    12,172.11x = 115,320,024.22
  5. Step 5: Solve for x
    x = 115,320,024.22/12,172.11
  6. Step 6: Final answer
    x = 9,474.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.