Home / 12,908.08-19,325.76-8,216.56

Finding the Fourth Proportional to 12,908.08, 19,325.76 and 8,216.56

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Solution

The fourth proportional to 12,908.08, 19,325.76 and 8,216.56 is: 12,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.08 : 19,325.76 = 8,216.56 : x
  2. Step 2: Convert to fraction form
    12,908.08/19,325.76 = 8,216.56/x
  3. Step 3: Cross multiply
    12,908.08x = 19,325.76 × 8,216.56
  4. Step 4: Simplify right side
    12,908.08x = 158,791,266.59
  5. Step 5: Solve for x
    x = 158,791,266.59/12,908.08
  6. Step 6: Final answer
    x = 12,301.70

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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.