Home / 8,649.33-11,935.58-5,112.87

Finding the Fourth Proportional to 8,649.33, 11,935.58 and 5,112.87

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Solution

The fourth proportional to 8,649.33, 11,935.58 and 5,112.87 is: 7,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.33 : 11,935.58 = 5,112.87 : x
  2. Step 2: Convert to fraction form
    8,649.33/11,935.58 = 5,112.87/x
  3. Step 3: Cross multiply
    8,649.33x = 11,935.58 × 5,112.87
  4. Step 4: Simplify right side
    8,649.33x = 61,025,068.91
  5. Step 5: Solve for x
    x = 61,025,068.91/8,649.33
  6. Step 6: Final answer
    x = 7,055.47

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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.