Home / 14,094.50-21,127.77-7,857.36

Finding the Fourth Proportional to 14,094.50, 21,127.77 and 7,857.36

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Solution

The fourth proportional to 14,094.50, 21,127.77 and 7,857.36 is: 11,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,094.50 : 21,127.77 = 7,857.36 : x
  2. Step 2: Convert to fraction form
    14,094.50/21,127.77 = 7,857.36/x
  3. Step 3: Cross multiply
    14,094.50x = 21,127.77 × 7,857.36
  4. Step 4: Simplify right side
    14,094.50x = 166,008,494.89
  5. Step 5: Solve for x
    x = 166,008,494.89/14,094.50
  6. Step 6: Final answer
    x = 11,778.25

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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.