Home / 13,242.22-19,871.70-7,402.66

Finding the Fourth Proportional to 13,242.22, 19,871.70 and 7,402.66

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Solution

The fourth proportional to 13,242.22, 19,871.70 and 7,402.66 is: 11,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.22 : 19,871.70 = 7,402.66 : x
  2. Step 2: Convert to fraction form
    13,242.22/19,871.70 = 7,402.66/x
  3. Step 3: Cross multiply
    13,242.22x = 19,871.70 × 7,402.66
  4. Step 4: Simplify right side
    13,242.22x = 147,103,361.28
  5. Step 5: Solve for x
    x = 147,103,361.28/13,242.22
  6. Step 6: Final answer
    x = 11,108.67

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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.