Home / 13,574.52-20,268.93-12,159.81

Finding the Fourth Proportional to 13,574.52, 20,268.93 and 12,159.81

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Solution

The fourth proportional to 13,574.52, 20,268.93 and 12,159.81 is: 18,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.52 : 20,268.93 = 12,159.81 : x
  2. Step 2: Convert to fraction form
    13,574.52/20,268.93 = 12,159.81/x
  3. Step 3: Cross multiply
    13,574.52x = 20,268.93 × 12,159.81
  4. Step 4: Simplify right side
    13,574.52x = 246,466,236.36
  5. Step 5: Solve for x
    x = 246,466,236.36/13,574.52
  6. Step 6: Final answer
    x = 18,156.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.