Home / 14,102.51-21,120.08-7,846.98

Finding the Fourth Proportional to 14,102.51, 21,120.08 and 7,846.98

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Solution

The fourth proportional to 14,102.51, 21,120.08 and 7,846.98 is: 11,751.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.51 : 21,120.08 = 7,846.98 : x
  2. Step 2: Convert to fraction form
    14,102.51/21,120.08 = 7,846.98/x
  3. Step 3: Cross multiply
    14,102.51x = 21,120.08 × 7,846.98
  4. Step 4: Simplify right side
    14,102.51x = 165,728,726.92
  5. Step 5: Solve for x
    x = 165,728,726.92/14,102.51
  6. Step 6: Final answer
    x = 11,751.72

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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.