Home / 15,794.66-21,820.41-10,356.65

Finding the Fourth Proportional to 15,794.66, 21,820.41 and 10,356.65

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Solution

The fourth proportional to 15,794.66, 21,820.41 and 10,356.65 is: 14,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.66 : 21,820.41 = 10,356.65 : x
  2. Step 2: Convert to fraction form
    15,794.66/21,820.41 = 10,356.65/x
  3. Step 3: Cross multiply
    15,794.66x = 21,820.41 × 10,356.65
  4. Step 4: Simplify right side
    15,794.66x = 225,986,321.95
  5. Step 5: Solve for x
    x = 225,986,321.95/15,794.66
  6. Step 6: Final answer
    x = 14,307.77

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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.