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Finding the Fourth Proportional to 11,885.31, 17,826.93 and 7,203.93

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Solution

The fourth proportional to 11,885.31, 17,826.93 and 7,203.93 is: 10,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.31 : 17,826.93 = 7,203.93 : x
  2. Step 2: Convert to fraction form
    11,885.31/17,826.93 = 7,203.93/x
  3. Step 3: Cross multiply
    11,885.31x = 17,826.93 × 7,203.93
  4. Step 4: Simplify right side
    11,885.31x = 128,423,888.98
  5. Step 5: Solve for x
    x = 128,423,888.98/11,885.31
  6. Step 6: Final answer
    x = 10,805.26

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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.