Home / 9,115.86-13,678.08-3,852.06

Finding the Fourth Proportional to 9,115.86, 13,678.08 and 3,852.06

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Solution

The fourth proportional to 9,115.86, 13,678.08 and 3,852.06 is: 5,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.86 : 13,678.08 = 3,852.06 : x
  2. Step 2: Convert to fraction form
    9,115.86/13,678.08 = 3,852.06/x
  3. Step 3: Cross multiply
    9,115.86x = 13,678.08 × 3,852.06
  4. Step 4: Simplify right side
    9,115.86x = 52,688,784.84
  5. Step 5: Solve for x
    x = 52,688,784.84/9,115.86
  6. Step 6: Final answer
    x = 5,779.90

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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.