Home / 13,723.77-18,938.84-7,436.15

Finding the Fourth Proportional to 13,723.77, 18,938.84 and 7,436.15

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Solution

The fourth proportional to 13,723.77, 18,938.84 and 7,436.15 is: 10,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.77 : 18,938.84 = 7,436.15 : x
  2. Step 2: Convert to fraction form
    13,723.77/18,938.84 = 7,436.15/x
  3. Step 3: Cross multiply
    13,723.77x = 18,938.84 × 7,436.15
  4. Step 4: Simplify right side
    13,723.77x = 140,831,923.19
  5. Step 5: Solve for x
    x = 140,831,923.19/13,723.77
  6. Step 6: Final answer
    x = 10,261.90

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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.