Home / 12,888.26-19,332.02-4,123.70

Finding the Fourth Proportional to 12,888.26, 19,332.02 and 4,123.70

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Solution

The fourth proportional to 12,888.26, 19,332.02 and 4,123.70 is: 6,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.26 : 19,332.02 = 4,123.70 : x
  2. Step 2: Convert to fraction form
    12,888.26/19,332.02 = 4,123.70/x
  3. Step 3: Cross multiply
    12,888.26x = 19,332.02 × 4,123.70
  4. Step 4: Simplify right side
    12,888.26x = 79,719,450.87
  5. Step 5: Solve for x
    x = 79,719,450.87/12,888.26
  6. Step 6: Final answer
    x = 6,185.43

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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.