Home / 8,943.88-13,336.85-7,719.16

Finding the Fourth Proportional to 8,943.88, 13,336.85 and 7,719.16

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Solution

The fourth proportional to 8,943.88, 13,336.85 and 7,719.16 is: 11,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.88 : 13,336.85 = 7,719.16 : x
  2. Step 2: Convert to fraction form
    8,943.88/13,336.85 = 7,719.16/x
  3. Step 3: Cross multiply
    8,943.88x = 13,336.85 × 7,719.16
  4. Step 4: Simplify right side
    8,943.88x = 102,949,279.05
  5. Step 5: Solve for x
    x = 102,949,279.05/8,943.88
  6. Step 6: Final answer
    x = 11,510.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.