Home / 13,856.82-19,122.66-7,569.06

Finding the Fourth Proportional to 13,856.82, 19,122.66 and 7,569.06

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Solution

The fourth proportional to 13,856.82, 19,122.66 and 7,569.06 is: 10,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.82 : 19,122.66 = 7,569.06 : x
  2. Step 2: Convert to fraction form
    13,856.82/19,122.66 = 7,569.06/x
  3. Step 3: Cross multiply
    13,856.82x = 19,122.66 × 7,569.06
  4. Step 4: Simplify right side
    13,856.82x = 144,740,560.90
  5. Step 5: Solve for x
    x = 144,740,560.90/13,856.82
  6. Step 6: Final answer
    x = 10,445.44

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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.