Home / 11,381.23-15,705.84-6,345.94

Finding the Fourth Proportional to 11,381.23, 15,705.84 and 6,345.94

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Solution

The fourth proportional to 11,381.23, 15,705.84 and 6,345.94 is: 8,757.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.23 : 15,705.84 = 6,345.94 : x
  2. Step 2: Convert to fraction form
    11,381.23/15,705.84 = 6,345.94/x
  3. Step 3: Cross multiply
    11,381.23x = 15,705.84 × 6,345.94
  4. Step 4: Simplify right side
    11,381.23x = 99,668,318.29
  5. Step 5: Solve for x
    x = 99,668,318.29/11,381.23
  6. Step 6: Final answer
    x = 8,757.25

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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.