Home / 12,187.51-18,274.82-5,607.98

Finding the Fourth Proportional to 12,187.51, 18,274.82 and 5,607.98

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Solution

The fourth proportional to 12,187.51, 18,274.82 and 5,607.98 is: 8,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.51 : 18,274.82 = 5,607.98 : x
  2. Step 2: Convert to fraction form
    12,187.51/18,274.82 = 5,607.98/x
  3. Step 3: Cross multiply
    12,187.51x = 18,274.82 × 5,607.98
  4. Step 4: Simplify right side
    12,187.51x = 102,484,876.98
  5. Step 5: Solve for x
    x = 102,484,876.98/12,187.51
  6. Step 6: Final answer
    x = 8,409.01

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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.