Home / 12,888.95-19,323.97-4,118.81

Finding the Fourth Proportional to 12,888.95, 19,323.97 and 4,118.81

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Solution

The fourth proportional to 12,888.95, 19,323.97 and 4,118.81 is: 6,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.95 : 19,323.97 = 4,118.81 : x
  2. Step 2: Convert to fraction form
    12,888.95/19,323.97 = 4,118.81/x
  3. Step 3: Cross multiply
    12,888.95x = 19,323.97 × 4,118.81
  4. Step 4: Simplify right side
    12,888.95x = 79,591,653.96
  5. Step 5: Solve for x
    x = 79,591,653.96/12,888.95
  6. Step 6: Final answer
    x = 6,175.19

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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.