Home / 11,053.23-15,248.36-7,078.35

Finding the Fourth Proportional to 11,053.23, 15,248.36 and 7,078.35

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Solution

The fourth proportional to 11,053.23, 15,248.36 and 7,078.35 is: 9,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,053.23 : 15,248.36 = 7,078.35 : x
  2. Step 2: Convert to fraction form
    11,053.23/15,248.36 = 7,078.35/x
  3. Step 3: Cross multiply
    11,053.23x = 15,248.36 × 7,078.35
  4. Step 4: Simplify right side
    11,053.23x = 107,933,303.88
  5. Step 5: Solve for x
    x = 107,933,303.88/11,053.23
  6. Step 6: Final answer
    x = 9,764.87

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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.