Home / 12,218.81-16,875.81-8,232.98

Finding the Fourth Proportional to 12,218.81, 16,875.81 and 8,232.98

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Solution

The fourth proportional to 12,218.81, 16,875.81 and 8,232.98 is: 11,370.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.81 : 16,875.81 = 8,232.98 : x
  2. Step 2: Convert to fraction form
    12,218.81/16,875.81 = 8,232.98/x
  3. Step 3: Cross multiply
    12,218.81x = 16,875.81 × 8,232.98
  4. Step 4: Simplify right side
    12,218.81x = 138,938,121.83
  5. Step 5: Solve for x
    x = 138,938,121.83/12,218.81
  6. Step 6: Final answer
    x = 11,370.84

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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.