Home / 12,192.78-16,825.28-6,886.74

Finding the Fourth Proportional to 12,192.78, 16,825.28 and 6,886.74

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Solution

The fourth proportional to 12,192.78, 16,825.28 and 6,886.74 is: 9,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.78 : 16,825.28 = 6,886.74 : x
  2. Step 2: Convert to fraction form
    12,192.78/16,825.28 = 6,886.74/x
  3. Step 3: Cross multiply
    12,192.78x = 16,825.28 × 6,886.74
  4. Step 4: Simplify right side
    12,192.78x = 115,871,294.35
  5. Step 5: Solve for x
    x = 115,871,294.35/12,192.78
  6. Step 6: Final answer
    x = 9,503.27

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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.