Home / 9,750.25-13,458.78-5,774.77

Finding the Fourth Proportional to 9,750.25, 13,458.78 and 5,774.77

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Solution

The fourth proportional to 9,750.25, 13,458.78 and 5,774.77 is: 7,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,750.25 : 13,458.78 = 5,774.77 : x
  2. Step 2: Convert to fraction form
    9,750.25/13,458.78 = 5,774.77/x
  3. Step 3: Cross multiply
    9,750.25x = 13,458.78 × 5,774.77
  4. Step 4: Simplify right side
    9,750.25x = 77,721,325.33
  5. Step 5: Solve for x
    x = 77,721,325.33/9,750.25
  6. Step 6: Final answer
    x = 7,971.22

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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.