Home / 12,888.37-19,332.53-4,123.94

Finding the Fourth Proportional to 12,888.37, 19,332.53 and 4,123.94

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Solution

The fourth proportional to 12,888.37, 19,332.53 and 4,123.94 is: 6,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.37 : 19,332.53 = 4,123.94 : x
  2. Step 2: Convert to fraction form
    12,888.37/19,332.53 = 4,123.94/x
  3. Step 3: Cross multiply
    12,888.37x = 19,332.53 × 4,123.94
  4. Step 4: Simplify right side
    12,888.37x = 79,726,173.15
  5. Step 5: Solve for x
    x = 79,726,173.15/12,888.37
  6. Step 6: Final answer
    x = 6,185.90

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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.