Home / 9,328.71-12,873.60-5,136.96

Finding the Fourth Proportional to 9,328.71, 12,873.60 and 5,136.96

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Solution

The fourth proportional to 9,328.71, 12,873.60 and 5,136.96 is: 7,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.71 : 12,873.60 = 5,136.96 : x
  2. Step 2: Convert to fraction form
    9,328.71/12,873.60 = 5,136.96/x
  3. Step 3: Cross multiply
    9,328.71x = 12,873.60 × 5,136.96
  4. Step 4: Simplify right side
    9,328.71x = 66,131,168.26
  5. Step 5: Solve for x
    x = 66,131,168.26/9,328.71
  6. Step 6: Final answer
    x = 7,088.99

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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.