Home / 7,945.92-10,962.18-5,112.74

Finding the Fourth Proportional to 7,945.92, 10,962.18 and 5,112.74

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Solution

The fourth proportional to 7,945.92, 10,962.18 and 5,112.74 is: 7,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.92 : 10,962.18 = 5,112.74 : x
  2. Step 2: Convert to fraction form
    7,945.92/10,962.18 = 5,112.74/x
  3. Step 3: Cross multiply
    7,945.92x = 10,962.18 × 5,112.74
  4. Step 4: Simplify right side
    7,945.92x = 56,046,721.36
  5. Step 5: Solve for x
    x = 56,046,721.36/7,945.92
  6. Step 6: Final answer
    x = 7,053.52

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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.