Home / 12,868.46-17,758.81-7,563.56

Finding the Fourth Proportional to 12,868.46, 17,758.81 and 7,563.56

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Solution

The fourth proportional to 12,868.46, 17,758.81 and 7,563.56 is: 10,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.46 : 17,758.81 = 7,563.56 : x
  2. Step 2: Convert to fraction form
    12,868.46/17,758.81 = 7,563.56/x
  3. Step 3: Cross multiply
    12,868.46x = 17,758.81 × 7,563.56
  4. Step 4: Simplify right side
    12,868.46x = 134,319,787.15
  5. Step 5: Solve for x
    x = 134,319,787.15/12,868.46
  6. Step 6: Final answer
    x = 10,437.91

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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.