Home / 12,625.02-18,921.06-6,774.78

Finding the Fourth Proportional to 12,625.02, 18,921.06 and 6,774.78

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Solution

The fourth proportional to 12,625.02, 18,921.06 and 6,774.78 is: 10,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.02 : 18,921.06 = 6,774.78 : x
  2. Step 2: Convert to fraction form
    12,625.02/18,921.06 = 6,774.78/x
  3. Step 3: Cross multiply
    12,625.02x = 18,921.06 × 6,774.78
  4. Step 4: Simplify right side
    12,625.02x = 128,186,018.87
  5. Step 5: Solve for x
    x = 128,186,018.87/12,625.02
  6. Step 6: Final answer
    x = 10,153.33

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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.