Home / 9,872.15-13,623.48-5,395.77

Finding the Fourth Proportional to 9,872.15, 13,623.48 and 5,395.77

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Solution

The fourth proportional to 9,872.15, 13,623.48 and 5,395.77 is: 7,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.15 : 13,623.48 = 5,395.77 : x
  2. Step 2: Convert to fraction form
    9,872.15/13,623.48 = 5,395.77/x
  3. Step 3: Cross multiply
    9,872.15x = 13,623.48 × 5,395.77
  4. Step 4: Simplify right side
    9,872.15x = 73,509,164.68
  5. Step 5: Solve for x
    x = 73,509,164.68/9,872.15
  6. Step 6: Final answer
    x = 7,446.12

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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.