Home / 8,647.92-11,931.36-5,112.32

Finding the Fourth Proportional to 8,647.92, 11,931.36 and 5,112.32

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Solution

The fourth proportional to 8,647.92, 11,931.36 and 5,112.32 is: 7,053.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.92 : 11,931.36 = 5,112.32 : x
  2. Step 2: Convert to fraction form
    8,647.92/11,931.36 = 5,112.32/x
  3. Step 3: Cross multiply
    8,647.92x = 11,931.36 × 5,112.32
  4. Step 4: Simplify right side
    8,647.92x = 60,996,930.36
  5. Step 5: Solve for x
    x = 60,996,930.36/8,647.92
  6. Step 6: Final answer
    x = 7,053.36

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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.