Home / 15,698.57-21,643.08-13,450.82

Finding the Fourth Proportional to 15,698.57, 21,643.08 and 13,450.82

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Solution

The fourth proportional to 15,698.57, 21,643.08 and 13,450.82 is: 18,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.57 : 21,643.08 = 13,450.82 : x
  2. Step 2: Convert to fraction form
    15,698.57/21,643.08 = 13,450.82/x
  3. Step 3: Cross multiply
    15,698.57x = 21,643.08 × 13,450.82
  4. Step 4: Simplify right side
    15,698.57x = 291,117,173.33
  5. Step 5: Solve for x
    x = 291,117,173.33/15,698.57
  6. Step 6: Final answer
    x = 18,544.18

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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.