Home / 13,163.40-19,701.90-10,225.80

Finding the Fourth Proportional to 13,163.40, 19,701.90 and 10,225.80

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Solution

The fourth proportional to 13,163.40, 19,701.90 and 10,225.80 is: 15,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.40 : 19,701.90 = 10,225.80 : x
  2. Step 2: Convert to fraction form
    13,163.40/19,701.90 = 10,225.80/x
  3. Step 3: Cross multiply
    13,163.40x = 19,701.90 × 10,225.80
  4. Step 4: Simplify right side
    13,163.40x = 201,467,689.02
  5. Step 5: Solve for x
    x = 201,467,689.02/13,163.40
  6. Step 6: Final answer
    x = 15,305.14

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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.