Home / 15,136.36-20,890.68-8,847.52

Finding the Fourth Proportional to 15,136.36, 20,890.68 and 8,847.52

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Solution

The fourth proportional to 15,136.36, 20,890.68 and 8,847.52 is: 12,211.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.36 : 20,890.68 = 8,847.52 : x
  2. Step 2: Convert to fraction form
    15,136.36/20,890.68 = 8,847.52/x
  3. Step 3: Cross multiply
    15,136.36x = 20,890.68 × 8,847.52
  4. Step 4: Simplify right side
    15,136.36x = 184,830,709.11
  5. Step 5: Solve for x
    x = 184,830,709.11/15,136.36
  6. Step 6: Final answer
    x = 12,211.04

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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.