Home / 12,895.49-17,795.56-7,230.45

Finding the Fourth Proportional to 12,895.49, 17,795.56 and 7,230.45

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Solution

The fourth proportional to 12,895.49, 17,795.56 and 7,230.45 is: 9,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.49 : 17,795.56 = 7,230.45 : x
  2. Step 2: Convert to fraction form
    12,895.49/17,795.56 = 7,230.45/x
  3. Step 3: Cross multiply
    12,895.49x = 17,795.56 × 7,230.45
  4. Step 4: Simplify right side
    12,895.49x = 128,669,906.80
  5. Step 5: Solve for x
    x = 128,669,906.80/12,895.49
  6. Step 6: Final answer
    x = 9,977.90

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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.