Home / 8,779.53-13,173.75-5,085.12

Finding the Fourth Proportional to 8,779.53, 13,173.75 and 5,085.12

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Solution

The fourth proportional to 8,779.53, 13,173.75 and 5,085.12 is: 7,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.53 : 13,173.75 = 5,085.12 : x
  2. Step 2: Convert to fraction form
    8,779.53/13,173.75 = 5,085.12/x
  3. Step 3: Cross multiply
    8,779.53x = 13,173.75 × 5,085.12
  4. Step 4: Simplify right side
    8,779.53x = 66,990,099.60
  5. Step 5: Solve for x
    x = 66,990,099.60/8,779.53
  6. Step 6: Final answer
    x = 7,630.26

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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.