Home / 13,615.44-18,808.20-10,510.80

Finding the Fourth Proportional to 13,615.44, 18,808.20 and 10,510.80

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Solution

The fourth proportional to 13,615.44, 18,808.20 and 10,510.80 is: 14,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.44 : 18,808.20 = 10,510.80 : x
  2. Step 2: Convert to fraction form
    13,615.44/18,808.20 = 10,510.80/x
  3. Step 3: Cross multiply
    13,615.44x = 18,808.20 × 10,510.80
  4. Step 4: Simplify right side
    13,615.44x = 197,689,228.56
  5. Step 5: Solve for x
    x = 197,689,228.56/13,615.44
  6. Step 6: Final answer
    x = 14,519.49

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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.