Home / 9,661.05-13,331.32-5,411.77

Finding the Fourth Proportional to 9,661.05, 13,331.32 and 5,411.77

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Solution

The fourth proportional to 9,661.05, 13,331.32 and 5,411.77 is: 7,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.05 : 13,331.32 = 5,411.77 : x
  2. Step 2: Convert to fraction form
    9,661.05/13,331.32 = 5,411.77/x
  3. Step 3: Cross multiply
    9,661.05x = 13,331.32 × 5,411.77
  4. Step 4: Simplify right side
    9,661.05x = 72,146,037.64
  5. Step 5: Solve for x
    x = 72,146,037.64/9,661.05
  6. Step 6: Final answer
    x = 7,467.72

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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.