Home / 15,942.42-22,000.72-9,136.30

Finding the Fourth Proportional to 15,942.42, 22,000.72 and 9,136.30

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Solution

The fourth proportional to 15,942.42, 22,000.72 and 9,136.30 is: 12,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.42 : 22,000.72 = 9,136.30 : x
  2. Step 2: Convert to fraction form
    15,942.42/22,000.72 = 9,136.30/x
  3. Step 3: Cross multiply
    15,942.42x = 22,000.72 × 9,136.30
  4. Step 4: Simplify right side
    15,942.42x = 201,005,132.45
  5. Step 5: Solve for x
    x = 201,005,132.45/15,942.42
  6. Step 6: Final answer
    x = 12,608.20

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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.