Home / 11,387.05-15,710.97-6,670.42

Finding the Fourth Proportional to 11,387.05, 15,710.97 and 6,670.42

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Solution

The fourth proportional to 11,387.05, 15,710.97 and 6,670.42 is: 9,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.05 : 15,710.97 = 6,670.42 : x
  2. Step 2: Convert to fraction form
    11,387.05/15,710.97 = 6,670.42/x
  3. Step 3: Cross multiply
    11,387.05x = 15,710.97 × 6,670.42
  4. Step 4: Simplify right side
    11,387.05x = 104,798,768.51
  5. Step 5: Solve for x
    x = 104,798,768.51/11,387.05
  6. Step 6: Final answer
    x = 9,203.33

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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.