Home / 10,712.49-16,047.81-7,380.15

Finding the Fourth Proportional to 10,712.49, 16,047.81 and 7,380.15

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Solution

The fourth proportional to 10,712.49, 16,047.81 and 7,380.15 is: 11,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.49 : 16,047.81 = 7,380.15 : x
  2. Step 2: Convert to fraction form
    10,712.49/16,047.81 = 7,380.15/x
  3. Step 3: Cross multiply
    10,712.49x = 16,047.81 × 7,380.15
  4. Step 4: Simplify right side
    10,712.49x = 118,435,244.97
  5. Step 5: Solve for x
    x = 118,435,244.97/10,712.49
  6. Step 6: Final answer
    x = 11,055.81

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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.