Home / 7,315.62-10,967.76-3,615.30

Finding the Fourth Proportional to 7,315.62, 10,967.76 and 3,615.30

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Solution

The fourth proportional to 7,315.62, 10,967.76 and 3,615.30 is: 5,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.62 : 10,967.76 = 3,615.30 : x
  2. Step 2: Convert to fraction form
    7,315.62/10,967.76 = 3,615.30/x
  3. Step 3: Cross multiply
    7,315.62x = 10,967.76 × 3,615.30
  4. Step 4: Simplify right side
    7,315.62x = 39,651,742.73
  5. Step 5: Solve for x
    x = 39,651,742.73/7,315.62
  6. Step 6: Final answer
    x = 5,420.15

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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.