Home / 15,615.50-23,420.39-4,519.46

Finding the Fourth Proportional to 15,615.50, 23,420.39 and 4,519.46

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Solution

The fourth proportional to 15,615.50, 23,420.39 and 4,519.46 is: 6,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.50 : 23,420.39 = 4,519.46 : x
  2. Step 2: Convert to fraction form
    15,615.50/23,420.39 = 4,519.46/x
  3. Step 3: Cross multiply
    15,615.50x = 23,420.39 × 4,519.46
  4. Step 4: Simplify right side
    15,615.50x = 105,847,515.79
  5. Step 5: Solve for x
    x = 105,847,515.79/15,615.50
  6. Step 6: Final answer
    x = 6,778.36

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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.