Home / 8,943.31-13,415.12-4,992.28

Finding the Fourth Proportional to 8,943.31, 13,415.12 and 4,992.28

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Solution

The fourth proportional to 8,943.31, 13,415.12 and 4,992.28 is: 7,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.31 : 13,415.12 = 4,992.28 : x
  2. Step 2: Convert to fraction form
    8,943.31/13,415.12 = 4,992.28/x
  3. Step 3: Cross multiply
    8,943.31x = 13,415.12 × 4,992.28
  4. Step 4: Simplify right side
    8,943.31x = 66,972,070.96
  5. Step 5: Solve for x
    x = 66,972,070.96/8,943.31
  6. Step 6: Final answer
    x = 7,488.51

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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.