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Finding the Fourth Proportional to 11,111, 15,335.04 and 6,394.40

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Solution

The fourth proportional to 11,111, 15,335.04 and 6,394.40 is: 8,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111 : 15,335.04 = 6,394.40 : x
  2. Step 2: Convert to fraction form
    11,111/15,335.04 = 6,394.40/x
  3. Step 3: Cross multiply
    11,111x = 15,335.04 × 6,394.40
  4. Step 4: Simplify right side
    11,111x = 98,058,379.78
  5. Step 5: Solve for x
    x = 98,058,379.78/11,111
  6. Step 6: Final answer
    x = 8,825.34

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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.