Home / 7,919.32-10,916.10-6,238.07

Finding the Fourth Proportional to 7,919.32, 10,916.10 and 6,238.07

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Solution

The fourth proportional to 7,919.32, 10,916.10 and 6,238.07 is: 8,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.32 : 10,916.10 = 6,238.07 : x
  2. Step 2: Convert to fraction form
    7,919.32/10,916.10 = 6,238.07/x
  3. Step 3: Cross multiply
    7,919.32x = 10,916.10 × 6,238.07
  4. Step 4: Simplify right side
    7,919.32x = 68,095,310.16
  5. Step 5: Solve for x
    x = 68,095,310.16/7,919.32
  6. Step 6: Final answer
    x = 8,598.63

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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.