Home / 11,376.07-15,697.87-6,840.07

Finding the Fourth Proportional to 11,376.07, 15,697.87 and 6,840.07

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Solution

The fourth proportional to 11,376.07, 15,697.87 and 6,840.07 is: 9,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.07 : 15,697.87 = 6,840.07 : x
  2. Step 2: Convert to fraction form
    11,376.07/15,697.87 = 6,840.07/x
  3. Step 3: Cross multiply
    11,376.07x = 15,697.87 × 6,840.07
  4. Step 4: Simplify right side
    11,376.07x = 107,374,529.65
  5. Step 5: Solve for x
    x = 107,374,529.65/11,376.07
  6. Step 6: Final answer
    x = 9,438.63

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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.