Home / 9,109.76-12,572.01-6,079.68

Finding the Fourth Proportional to 9,109.76, 12,572.01 and 6,079.68

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Solution

The fourth proportional to 9,109.76, 12,572.01 and 6,079.68 is: 8,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.76 : 12,572.01 = 6,079.68 : x
  2. Step 2: Convert to fraction form
    9,109.76/12,572.01 = 6,079.68/x
  3. Step 3: Cross multiply
    9,109.76x = 12,572.01 × 6,079.68
  4. Step 4: Simplify right side
    9,109.76x = 76,433,797.76
  5. Step 5: Solve for x
    x = 76,433,797.76/9,109.76
  6. Step 6: Final answer
    x = 8,390.32

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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.