Home / 12,724.61-19,099.26-7,803.86

Finding the Fourth Proportional to 12,724.61, 19,099.26 and 7,803.86

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Solution

The fourth proportional to 12,724.61, 19,099.26 and 7,803.86 is: 11,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.61 : 19,099.26 = 7,803.86 : x
  2. Step 2: Convert to fraction form
    12,724.61/19,099.26 = 7,803.86/x
  3. Step 3: Cross multiply
    12,724.61x = 19,099.26 × 7,803.86
  4. Step 4: Simplify right side
    12,724.61x = 149,047,855.65
  5. Step 5: Solve for x
    x = 149,047,855.65/12,724.61
  6. Step 6: Final answer
    x = 11,713.36

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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.