Home / 19,015.12-26,231.76-12,302.80

Finding the Fourth Proportional to 19,015.12, 26,231.76 and 12,302.80

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Solution

The fourth proportional to 19,015.12, 26,231.76 and 12,302.80 is: 16,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.12 : 26,231.76 = 12,302.80 : x
  2. Step 2: Convert to fraction form
    19,015.12/26,231.76 = 12,302.80/x
  3. Step 3: Cross multiply
    19,015.12x = 26,231.76 × 12,302.80
  4. Step 4: Simplify right side
    19,015.12x = 322,724,096.93
  5. Step 5: Solve for x
    x = 322,724,096.93/19,015.12
  6. Step 6: Final answer
    x = 16,971.97

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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.