Home / 11,451.97-15,802.71-6,415.52

Finding the Fourth Proportional to 11,451.97, 15,802.71 and 6,415.52

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Solution

The fourth proportional to 11,451.97, 15,802.71 and 6,415.52 is: 8,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.97 : 15,802.71 = 6,415.52 : x
  2. Step 2: Convert to fraction form
    11,451.97/15,802.71 = 6,415.52/x
  3. Step 3: Cross multiply
    11,451.97x = 15,802.71 × 6,415.52
  4. Step 4: Simplify right side
    11,451.97x = 101,382,602.06
  5. Step 5: Solve for x
    x = 101,382,602.06/11,451.97
  6. Step 6: Final answer
    x = 8,852.86

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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.