Home / 13,868.54-19,138.28-7,580.96

Finding the Fourth Proportional to 13,868.54, 19,138.28 and 7,580.96

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Solution

The fourth proportional to 13,868.54, 19,138.28 and 7,580.96 is: 10,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.54 : 19,138.28 = 7,580.96 : x
  2. Step 2: Convert to fraction form
    13,868.54/19,138.28 = 7,580.96/x
  3. Step 3: Cross multiply
    13,868.54x = 19,138.28 × 7,580.96
  4. Step 4: Simplify right side
    13,868.54x = 145,086,535.15
  5. Step 5: Solve for x
    x = 145,086,535.15/13,868.54
  6. Step 6: Final answer
    x = 10,461.56

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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.