Home / 13,161.48-18,163.08-7,193.40

Finding the Fourth Proportional to 13,161.48, 18,163.08 and 7,193.40

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Solution

The fourth proportional to 13,161.48, 18,163.08 and 7,193.40 is: 9,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.48 : 18,163.08 = 7,193.40 : x
  2. Step 2: Convert to fraction form
    13,161.48/18,163.08 = 7,193.40/x
  3. Step 3: Cross multiply
    13,161.48x = 18,163.08 × 7,193.40
  4. Step 4: Simplify right side
    13,161.48x = 130,654,299.67
  5. Step 5: Solve for x
    x = 130,654,299.67/13,161.48
  6. Step 6: Final answer
    x = 9,927.02

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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.