Home / 11,620.96-16,036.28-6,315.74

Finding the Fourth Proportional to 11,620.96, 16,036.28 and 6,315.74

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Solution

The fourth proportional to 11,620.96, 16,036.28 and 6,315.74 is: 8,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.96 : 16,036.28 = 6,315.74 : x
  2. Step 2: Convert to fraction form
    11,620.96/16,036.28 = 6,315.74/x
  3. Step 3: Cross multiply
    11,620.96x = 16,036.28 × 6,315.74
  4. Step 4: Simplify right side
    11,620.96x = 101,280,975.05
  5. Step 5: Solve for x
    x = 101,280,975.05/11,620.96
  6. Step 6: Final answer
    x = 8,715.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.