Home / 15,938.94-21,999.45-9,228.51

Finding the Fourth Proportional to 15,938.94, 21,999.45 and 9,228.51

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Solution

The fourth proportional to 15,938.94, 21,999.45 and 9,228.51 is: 12,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.94 : 21,999.45 = 9,228.51 : x
  2. Step 2: Convert to fraction form
    15,938.94/21,999.45 = 9,228.51/x
  3. Step 3: Cross multiply
    15,938.94x = 21,999.45 × 9,228.51
  4. Step 4: Simplify right side
    15,938.94x = 203,022,144.32
  5. Step 5: Solve for x
    x = 203,022,144.32/15,938.94
  6. Step 6: Final answer
    x = 12,737.49

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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.