Home / 11,620.90-16,036.93-6,315.71

Finding the Fourth Proportional to 11,620.90, 16,036.93 and 6,315.71

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Solution

The fourth proportional to 11,620.90, 16,036.93 and 6,315.71 is: 8,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.90 : 16,036.93 = 6,315.71 : x
  2. Step 2: Convert to fraction form
    11,620.90/16,036.93 = 6,315.71/x
  3. Step 3: Cross multiply
    11,620.90x = 16,036.93 × 6,315.71
  4. Step 4: Simplify right side
    11,620.90x = 101,284,599.17
  5. Step 5: Solve for x
    x = 101,284,599.17/11,620.90
  6. Step 6: Final answer
    x = 8,715.73

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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.