Home / 12,868.59-19,310.22-6,945.48

Finding the Fourth Proportional to 12,868.59, 19,310.22 and 6,945.48

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Solution

The fourth proportional to 12,868.59, 19,310.22 and 6,945.48 is: 10,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.59 : 19,310.22 = 6,945.48 : x
  2. Step 2: Convert to fraction form
    12,868.59/19,310.22 = 6,945.48/x
  3. Step 3: Cross multiply
    12,868.59x = 19,310.22 × 6,945.48
  4. Step 4: Simplify right side
    12,868.59x = 134,118,746.81
  5. Step 5: Solve for x
    x = 134,118,746.81/12,868.59
  6. Step 6: Final answer
    x = 10,422.18

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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.