Home / 14,698.47-21,934.35-13,121.61

Finding the Fourth Proportional to 14,698.47, 21,934.35 and 13,121.61

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Solution

The fourth proportional to 14,698.47, 21,934.35 and 13,121.61 is: 19,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,698.47 : 21,934.35 = 13,121.61 : x
  2. Step 2: Convert to fraction form
    14,698.47/21,934.35 = 13,121.61/x
  3. Step 3: Cross multiply
    14,698.47x = 21,934.35 × 13,121.61
  4. Step 4: Simplify right side
    14,698.47x = 287,813,986.30
  5. Step 5: Solve for x
    x = 287,813,986.30/14,698.47
  6. Step 6: Final answer
    x = 19,581.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.