Home / 13,161.61-18,163.25-7,193.53

Finding the Fourth Proportional to 13,161.61, 18,163.25 and 7,193.53

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Solution

The fourth proportional to 13,161.61, 18,163.25 and 7,193.53 is: 9,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.61 : 18,163.25 = 7,193.53 : x
  2. Step 2: Convert to fraction form
    13,161.61/18,163.25 = 7,193.53/x
  3. Step 3: Cross multiply
    13,161.61x = 18,163.25 × 7,193.53
  4. Step 4: Simplify right side
    13,161.61x = 130,657,883.77
  5. Step 5: Solve for x
    x = 130,657,883.77/13,161.61
  6. Step 6: Final answer
    x = 9,927.20

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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.