Home / 11,342.12-15,647.96-6,864.23

Finding the Fourth Proportional to 11,342.12, 15,647.96 and 6,864.23

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Solution

The fourth proportional to 11,342.12, 15,647.96 and 6,864.23 is: 9,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.12 : 15,647.96 = 6,864.23 : x
  2. Step 2: Convert to fraction form
    11,342.12/15,647.96 = 6,864.23/x
  3. Step 3: Cross multiply
    11,342.12x = 15,647.96 × 6,864.23
  4. Step 4: Simplify right side
    11,342.12x = 107,411,083.91
  5. Step 5: Solve for x
    x = 107,411,083.91/11,342.12
  6. Step 6: Final answer
    x = 9,470.11

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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.