Home / 13,292.56-19,896.72-7,431.40

Finding the Fourth Proportional to 13,292.56, 19,896.72 and 7,431.40

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Solution

The fourth proportional to 13,292.56, 19,896.72 and 7,431.40 is: 11,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.56 : 19,896.72 = 7,431.40 : x
  2. Step 2: Convert to fraction form
    13,292.56/19,896.72 = 7,431.40/x
  3. Step 3: Cross multiply
    13,292.56x = 19,896.72 × 7,431.40
  4. Step 4: Simplify right side
    13,292.56x = 147,860,485.01
  5. Step 5: Solve for x
    x = 147,860,485.01/13,292.56
  6. Step 6: Final answer
    x = 11,123.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.