Home / 11,136.44-15,368.60-6,421.04

Finding the Fourth Proportional to 11,136.44, 15,368.60 and 6,421.04

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Solution

The fourth proportional to 11,136.44, 15,368.60 and 6,421.04 is: 8,861.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.44 : 15,368.60 = 6,421.04 : x
  2. Step 2: Convert to fraction form
    11,136.44/15,368.60 = 6,421.04/x
  3. Step 3: Cross multiply
    11,136.44x = 15,368.60 × 6,421.04
  4. Step 4: Simplify right side
    11,136.44x = 98,682,395.34
  5. Step 5: Solve for x
    x = 98,682,395.34/11,136.44
  6. Step 6: Final answer
    x = 8,861.22

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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.