Home / 12,876.40-19,314.60-10,908.10

Finding the Fourth Proportional to 12,876.40, 19,314.60 and 10,908.10

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Solution

The fourth proportional to 12,876.40, 19,314.60 and 10,908.10 is: 16,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.40 : 19,314.60 = 10,908.10 : x
  2. Step 2: Convert to fraction form
    12,876.40/19,314.60 = 10,908.10/x
  3. Step 3: Cross multiply
    12,876.40x = 19,314.60 × 10,908.10
  4. Step 4: Simplify right side
    12,876.40x = 210,685,588.26
  5. Step 5: Solve for x
    x = 210,685,588.26/12,876.40
  6. Step 6: Final answer
    x = 16,362.15

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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.