Home / 12,829.94-19,247.88-5,434.70

Finding the Fourth Proportional to 12,829.94, 19,247.88 and 5,434.70

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Solution

The fourth proportional to 12,829.94, 19,247.88 and 5,434.70 is: 8,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.94 : 19,247.88 = 5,434.70 : x
  2. Step 2: Convert to fraction form
    12,829.94/19,247.88 = 5,434.70/x
  3. Step 3: Cross multiply
    12,829.94x = 19,247.88 × 5,434.70
  4. Step 4: Simplify right side
    12,829.94x = 104,606,347.01
  5. Step 5: Solve for x
    x = 104,606,347.01/12,829.94
  6. Step 6: Final answer
    x = 8,153.30

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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.