Home / 12,955.76-19,433.72-5,164.56

Finding the Fourth Proportional to 12,955.76, 19,433.72 and 5,164.56

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Solution

The fourth proportional to 12,955.76, 19,433.72 and 5,164.56 is: 7,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.76 : 19,433.72 = 5,164.56 : x
  2. Step 2: Convert to fraction form
    12,955.76/19,433.72 = 5,164.56/x
  3. Step 3: Cross multiply
    12,955.76x = 19,433.72 × 5,164.56
  4. Step 4: Simplify right side
    12,955.76x = 100,366,612.96
  5. Step 5: Solve for x
    x = 100,366,612.96/12,955.76
  6. Step 6: Final answer
    x = 7,746.87

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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.