Home / 12,863.04-19,298.70-6,289.80

Finding the Fourth Proportional to 12,863.04, 19,298.70 and 6,289.80

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Solution

The fourth proportional to 12,863.04, 19,298.70 and 6,289.80 is: 9,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.04 : 19,298.70 = 6,289.80 : x
  2. Step 2: Convert to fraction form
    12,863.04/19,298.70 = 6,289.80/x
  3. Step 3: Cross multiply
    12,863.04x = 19,298.70 × 6,289.80
  4. Step 4: Simplify right side
    12,863.04x = 121,384,963.26
  5. Step 5: Solve for x
    x = 121,384,963.26/12,863.04
  6. Step 6: Final answer
    x = 9,436.72

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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.