Home / 12,894.21-19,341.86-4,130.37

Finding the Fourth Proportional to 12,894.21, 19,341.86 and 4,130.37

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Solution

The fourth proportional to 12,894.21, 19,341.86 and 4,130.37 is: 6,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.21 : 19,341.86 = 4,130.37 : x
  2. Step 2: Convert to fraction form
    12,894.21/19,341.86 = 4,130.37/x
  3. Step 3: Cross multiply
    12,894.21x = 19,341.86 × 4,130.37
  4. Step 4: Simplify right side
    12,894.21x = 79,889,017.64
  5. Step 5: Solve for x
    x = 79,889,017.64/12,894.21
  6. Step 6: Final answer
    x = 6,195.73

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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.