Home / 8,074.04-11,128.47-6,159.20

Finding the Fourth Proportional to 8,074.04, 11,128.47 and 6,159.20

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Solution

The fourth proportional to 8,074.04, 11,128.47 and 6,159.20 is: 8,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.04 : 11,128.47 = 6,159.20 : x
  2. Step 2: Convert to fraction form
    8,074.04/11,128.47 = 6,159.20/x
  3. Step 3: Cross multiply
    8,074.04x = 11,128.47 × 6,159.20
  4. Step 4: Simplify right side
    8,074.04x = 68,542,472.42
  5. Step 5: Solve for x
    x = 68,542,472.42/8,074.04
  6. Step 6: Final answer
    x = 8,489.24

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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.