Home / 19,355.68-26,715.18-12,629.44

Finding the Fourth Proportional to 19,355.68, 26,715.18 and 12,629.44

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Solution

The fourth proportional to 19,355.68, 26,715.18 and 12,629.44 is: 17,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.68 : 26,715.18 = 12,629.44 : x
  2. Step 2: Convert to fraction form
    19,355.68/26,715.18 = 12,629.44/x
  3. Step 3: Cross multiply
    19,355.68x = 26,715.18 × 12,629.44
  4. Step 4: Simplify right side
    19,355.68x = 337,397,762.90
  5. Step 5: Solve for x
    x = 337,397,762.90/19,355.68
  6. Step 6: Final answer
    x = 17,431.46

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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.