Home / 9,328.62-12,873.53-5,136.87

Finding the Fourth Proportional to 9,328.62, 12,873.53 and 5,136.87

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Solution

The fourth proportional to 9,328.62, 12,873.53 and 5,136.87 is: 7,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.62 : 12,873.53 = 5,136.87 : x
  2. Step 2: Convert to fraction form
    9,328.62/12,873.53 = 5,136.87/x
  3. Step 3: Cross multiply
    9,328.62x = 12,873.53 × 5,136.87
  4. Step 4: Simplify right side
    9,328.62x = 66,129,650.05
  5. Step 5: Solve for x
    x = 66,129,650.05/9,328.62
  6. Step 6: Final answer
    x = 7,088.90

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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.