Home / 12,635.92-17,436.36-7,047.28

Finding the Fourth Proportional to 12,635.92, 17,436.36 and 7,047.28

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Solution

The fourth proportional to 12,635.92, 17,436.36 and 7,047.28 is: 9,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.92 : 17,436.36 = 7,047.28 : x
  2. Step 2: Convert to fraction form
    12,635.92/17,436.36 = 7,047.28/x
  3. Step 3: Cross multiply
    12,635.92x = 17,436.36 × 7,047.28
  4. Step 4: Simplify right side
    12,635.92x = 122,878,911.10
  5. Step 5: Solve for x
    x = 122,878,911.10/12,635.92
  6. Step 6: Final answer
    x = 9,724.57

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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.