Home / 9,421.24-14,136.72-3,878.68

Finding the Fourth Proportional to 9,421.24, 14,136.72 and 3,878.68

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Solution

The fourth proportional to 9,421.24, 14,136.72 and 3,878.68 is: 5,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.24 : 14,136.72 = 3,878.68 : x
  2. Step 2: Convert to fraction form
    9,421.24/14,136.72 = 3,878.68/x
  3. Step 3: Cross multiply
    9,421.24x = 14,136.72 × 3,878.68
  4. Step 4: Simplify right side
    9,421.24x = 54,831,813.13
  5. Step 5: Solve for x
    x = 54,831,813.13/9,421.24
  6. Step 6: Final answer
    x = 5,820.02

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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.