Home / 13,907.88-20,737.74-12,362.40

Finding the Fourth Proportional to 13,907.88, 20,737.74 and 12,362.40

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Solution

The fourth proportional to 13,907.88, 20,737.74 and 12,362.40 is: 18,433.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.88 : 20,737.74 = 12,362.40 : x
  2. Step 2: Convert to fraction form
    13,907.88/20,737.74 = 12,362.40/x
  3. Step 3: Cross multiply
    13,907.88x = 20,737.74 × 12,362.40
  4. Step 4: Simplify right side
    13,907.88x = 256,368,236.98
  5. Step 5: Solve for x
    x = 256,368,236.98/13,907.88
  6. Step 6: Final answer
    x = 18,433.31

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1.5x scale

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.