Home / 9,328.22-12,872.96-5,136.47

Finding the Fourth Proportional to 9,328.22, 12,872.96 and 5,136.47

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Solution

The fourth proportional to 9,328.22, 12,872.96 and 5,136.47 is: 7,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.22 : 12,872.96 = 5,136.47 : x
  2. Step 2: Convert to fraction form
    9,328.22/12,872.96 = 5,136.47/x
  3. Step 3: Cross multiply
    9,328.22x = 12,872.96 × 5,136.47
  4. Step 4: Simplify right side
    9,328.22x = 66,121,572.85
  5. Step 5: Solve for x
    x = 66,121,572.85/9,328.22
  6. Step 6: Final answer
    x = 7,088.34

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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.