Home / 12,888.80-19,333.23-4,124.42

Finding the Fourth Proportional to 12,888.80, 19,333.23 and 4,124.42

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Solution

The fourth proportional to 12,888.80, 19,333.23 and 4,124.42 is: 6,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.80 : 19,333.23 = 4,124.42 : x
  2. Step 2: Convert to fraction form
    12,888.80/19,333.23 = 4,124.42/x
  3. Step 3: Cross multiply
    12,888.80x = 19,333.23 × 4,124.42
  4. Step 4: Simplify right side
    12,888.80x = 79,738,360.48
  5. Step 5: Solve for x
    x = 79,738,360.48/12,888.80
  6. Step 6: Final answer
    x = 6,186.64

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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.