Home / 7,878.06-11,794.05-4,779.18

Finding the Fourth Proportional to 7,878.06, 11,794.05 and 4,779.18

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Solution

The fourth proportional to 7,878.06, 11,794.05 and 4,779.18 is: 7,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878.06 : 11,794.05 = 4,779.18 : x
  2. Step 2: Convert to fraction form
    7,878.06/11,794.05 = 4,779.18/x
  3. Step 3: Cross multiply
    7,878.06x = 11,794.05 × 4,779.18
  4. Step 4: Simplify right side
    7,878.06x = 56,365,887.88
  5. Step 5: Solve for x
    x = 56,365,887.88/7,878.06
  6. Step 6: Final answer
    x = 7,154.79

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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.