Home / 19,490.51-26,885.16-11,938.07

Finding the Fourth Proportional to 19,490.51, 26,885.16 and 11,938.07

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Solution

The fourth proportional to 19,490.51, 26,885.16 and 11,938.07 is: 16,467.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.51 : 26,885.16 = 11,938.07 : x
  2. Step 2: Convert to fraction form
    19,490.51/26,885.16 = 11,938.07/x
  3. Step 3: Cross multiply
    19,490.51x = 26,885.16 × 11,938.07
  4. Step 4: Simplify right side
    19,490.51x = 320,956,787.62
  5. Step 5: Solve for x
    x = 320,956,787.62/19,490.51
  6. Step 6: Final answer
    x = 16,467.34

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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.