Home / 19,014.04-26,231.34-12,728.44

Finding the Fourth Proportional to 19,014.04, 26,231.34 and 12,728.44

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Solution

The fourth proportional to 19,014.04, 26,231.34 and 12,728.44 is: 17,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.04 : 26,231.34 = 12,728.44 : x
  2. Step 2: Convert to fraction form
    19,014.04/26,231.34 = 12,728.44/x
  3. Step 3: Cross multiply
    19,014.04x = 26,231.34 × 12,728.44
  4. Step 4: Simplify right side
    19,014.04x = 333,884,037.31
  5. Step 5: Solve for x
    x = 333,884,037.31/19,014.04
  6. Step 6: Final answer
    x = 17,559.87

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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.