Home / 13,845.96-19,108.98-7,875.72

Finding the Fourth Proportional to 13,845.96, 19,108.98 and 7,875.72

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Solution

The fourth proportional to 13,845.96, 19,108.98 and 7,875.72 is: 10,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.96 : 19,108.98 = 7,875.72 : x
  2. Step 2: Convert to fraction form
    13,845.96/19,108.98 = 7,875.72/x
  3. Step 3: Cross multiply
    13,845.96x = 19,108.98 × 7,875.72
  4. Step 4: Simplify right side
    13,845.96x = 150,496,975.97
  5. Step 5: Solve for x
    x = 150,496,975.97/13,845.96
  6. Step 6: Final answer
    x = 10,869.38

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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.