Home / 19,787.16-27,293.67-13,816.65

Finding the Fourth Proportional to 19,787.16, 27,293.67 and 13,816.65

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Solution

The fourth proportional to 19,787.16, 27,293.67 and 13,816.65 is: 19,058.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.16 : 27,293.67 = 13,816.65 : x
  2. Step 2: Convert to fraction form
    19,787.16/27,293.67 = 13,816.65/x
  3. Step 3: Cross multiply
    19,787.16x = 27,293.67 × 13,816.65
  4. Step 4: Simplify right side
    19,787.16x = 377,107,085.61
  5. Step 5: Solve for x
    x = 377,107,085.61/19,787.16
  6. Step 6: Final answer
    x = 19,058.17

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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.