Home / 12,240.15-16,892.07-7,204.80

Finding the Fourth Proportional to 12,240.15, 16,892.07 and 7,204.80

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Solution

The fourth proportional to 12,240.15, 16,892.07 and 7,204.80 is: 9,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.15 : 16,892.07 = 7,204.80 : x
  2. Step 2: Convert to fraction form
    12,240.15/16,892.07 = 7,204.80/x
  3. Step 3: Cross multiply
    12,240.15x = 16,892.07 × 7,204.80
  4. Step 4: Simplify right side
    12,240.15x = 121,703,985.94
  5. Step 5: Solve for x
    x = 121,703,985.94/12,240.15
  6. Step 6: Final answer
    x = 9,943.01

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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.