Home / 7,772.51-11,656.32-3,385.55

Finding the Fourth Proportional to 7,772.51, 11,656.32 and 3,385.55

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Solution

The fourth proportional to 7,772.51, 11,656.32 and 3,385.55 is: 5,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.51 : 11,656.32 = 3,385.55 : x
  2. Step 2: Convert to fraction form
    7,772.51/11,656.32 = 3,385.55/x
  3. Step 3: Cross multiply
    7,772.51x = 11,656.32 × 3,385.55
  4. Step 4: Simplify right side
    7,772.51x = 39,463,054.18
  5. Step 5: Solve for x
    x = 39,463,054.18/7,772.51
  6. Step 6: Final answer
    x = 5,077.26

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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.