Home / 8,172.40-11,276.04-4,635.24

Finding the Fourth Proportional to 8,172.40, 11,276.04 and 4,635.24

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Solution

The fourth proportional to 8,172.40, 11,276.04 and 4,635.24 is: 6,395.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.40 : 11,276.04 = 4,635.24 : x
  2. Step 2: Convert to fraction form
    8,172.40/11,276.04 = 4,635.24/x
  3. Step 3: Cross multiply
    8,172.40x = 11,276.04 × 4,635.24
  4. Step 4: Simplify right side
    8,172.40x = 52,267,151.65
  5. Step 5: Solve for x
    x = 52,267,151.65/8,172.40
  6. Step 6: Final answer
    x = 6,395.57

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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.