Home / 9,161.51-13,731.64-4,220.77

Finding the Fourth Proportional to 9,161.51, 13,731.64 and 4,220.77

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Solution

The fourth proportional to 9,161.51, 13,731.64 and 4,220.77 is: 6,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.51 : 13,731.64 = 4,220.77 : x
  2. Step 2: Convert to fraction form
    9,161.51/13,731.64 = 4,220.77/x
  3. Step 3: Cross multiply
    9,161.51x = 13,731.64 × 4,220.77
  4. Step 4: Simplify right side
    9,161.51x = 57,958,094.16
  5. Step 5: Solve for x
    x = 57,958,094.16/9,161.51
  6. Step 6: Final answer
    x = 6,326.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.