Home / 15,846.94-21,871.08-9,131.26

Finding the Fourth Proportional to 15,846.94, 21,871.08 and 9,131.26

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Solution

The fourth proportional to 15,846.94, 21,871.08 and 9,131.26 is: 12,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,846.94 : 21,871.08 = 9,131.26 : x
  2. Step 2: Convert to fraction form
    15,846.94/21,871.08 = 9,131.26/x
  3. Step 3: Cross multiply
    15,846.94x = 21,871.08 × 9,131.26
  4. Step 4: Simplify right side
    15,846.94x = 199,710,517.96
  5. Step 5: Solve for x
    x = 199,710,517.96/15,846.94
  6. Step 6: Final answer
    x = 12,602.47

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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.