Home / 19,315.98-26,658.54-10,821.33

Finding the Fourth Proportional to 19,315.98, 26,658.54 and 10,821.33

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Solution

The fourth proportional to 19,315.98, 26,658.54 and 10,821.33 is: 14,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.98 : 26,658.54 = 10,821.33 : x
  2. Step 2: Convert to fraction form
    19,315.98/26,658.54 = 10,821.33/x
  3. Step 3: Cross multiply
    19,315.98x = 26,658.54 × 10,821.33
  4. Step 4: Simplify right side
    19,315.98x = 288,480,858.66
  5. Step 5: Solve for x
    x = 288,480,858.66/19,315.98
  6. Step 6: Final answer
    x = 14,934.83

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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.