Home / 12,869.48-19,302.78-8,736.04

Finding the Fourth Proportional to 12,869.48, 19,302.78 and 8,736.04

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Solution

The fourth proportional to 12,869.48, 19,302.78 and 8,736.04 is: 13,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.48 : 19,302.78 = 8,736.04 : x
  2. Step 2: Convert to fraction form
    12,869.48/19,302.78 = 8,736.04/x
  3. Step 3: Cross multiply
    12,869.48x = 19,302.78 × 8,736.04
  4. Step 4: Simplify right side
    12,869.48x = 168,629,858.19
  5. Step 5: Solve for x
    x = 168,629,858.19/12,869.48
  6. Step 6: Final answer
    x = 13,103.08

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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.