Home / 9,360.75-12,919.95-6,377.76

Finding the Fourth Proportional to 9,360.75, 12,919.95 and 6,377.76

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Solution

The fourth proportional to 9,360.75, 12,919.95 and 6,377.76 is: 8,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.75 : 12,919.95 = 6,377.76 : x
  2. Step 2: Convert to fraction form
    9,360.75/12,919.95 = 6,377.76/x
  3. Step 3: Cross multiply
    9,360.75x = 12,919.95 × 6,377.76
  4. Step 4: Simplify right side
    9,360.75x = 82,400,340.31
  5. Step 5: Solve for x
    x = 82,400,340.31/9,360.75
  6. Step 6: Final answer
    x = 8,802.75

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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.