Home / 15,875.51-21,907.46-9,163.31

Finding the Fourth Proportional to 15,875.51, 21,907.46 and 9,163.31

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Solution

The fourth proportional to 15,875.51, 21,907.46 and 9,163.31 is: 12,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.51 : 21,907.46 = 9,163.31 : x
  2. Step 2: Convert to fraction form
    15,875.51/21,907.46 = 9,163.31/x
  3. Step 3: Cross multiply
    15,875.51x = 21,907.46 × 9,163.31
  4. Step 4: Simplify right side
    15,875.51x = 200,744,760.66
  5. Step 5: Solve for x
    x = 200,744,760.66/15,875.51
  6. Step 6: Final answer
    x = 12,644.94

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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.