Home / 12,856.28-19,295.34-9,167.54

Finding the Fourth Proportional to 12,856.28, 19,295.34 and 9,167.54

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Solution

The fourth proportional to 12,856.28, 19,295.34 and 9,167.54 is: 13,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.28 : 19,295.34 = 9,167.54 : x
  2. Step 2: Convert to fraction form
    12,856.28/19,295.34 = 9,167.54/x
  3. Step 3: Cross multiply
    12,856.28x = 19,295.34 × 9,167.54
  4. Step 4: Simplify right side
    12,856.28x = 176,890,801.26
  5. Step 5: Solve for x
    x = 176,890,801.26/12,856.28
  6. Step 6: Final answer
    x = 13,759.10

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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.