Home / 13,669.79-20,497.40-7,079.63

Finding the Fourth Proportional to 13,669.79, 20,497.40 and 7,079.63

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Solution

The fourth proportional to 13,669.79, 20,497.40 and 7,079.63 is: 10,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.79 : 20,497.40 = 7,079.63 : x
  2. Step 2: Convert to fraction form
    13,669.79/20,497.40 = 7,079.63/x
  3. Step 3: Cross multiply
    13,669.79x = 20,497.40 × 7,079.63
  4. Step 4: Simplify right side
    13,669.79x = 145,113,972.56
  5. Step 5: Solve for x
    x = 145,113,972.56/13,669.79
  6. Step 6: Final answer
    x = 10,615.67

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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.