Home / 10,477.36-15,718.36-3,081.86

Finding the Fourth Proportional to 10,477.36, 15,718.36 and 3,081.86

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Solution

The fourth proportional to 10,477.36, 15,718.36 and 3,081.86 is: 4,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.36 : 15,718.36 = 3,081.86 : x
  2. Step 2: Convert to fraction form
    10,477.36/15,718.36 = 3,081.86/x
  3. Step 3: Cross multiply
    10,477.36x = 15,718.36 × 3,081.86
  4. Step 4: Simplify right side
    10,477.36x = 48,441,784.95
  5. Step 5: Solve for x
    x = 48,441,784.95/10,477.36
  6. Step 6: Final answer
    x = 4,623.47

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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.