Home / 19,019.21-26,237.66-12,307

Finding the Fourth Proportional to 19,019.21, 26,237.66 and 12,307

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Solution

The fourth proportional to 19,019.21, 26,237.66 and 12,307 is: 16,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.21 : 26,237.66 = 12,307 : x
  2. Step 2: Convert to fraction form
    19,019.21/26,237.66 = 12,307/x
  3. Step 3: Cross multiply
    19,019.21x = 26,237.66 × 12,307
  4. Step 4: Simplify right side
    19,019.21x = 322,906,881.62
  5. Step 5: Solve for x
    x = 322,906,881.62/19,019.21
  6. Step 6: Final answer
    x = 16,977.93

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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.