Home / 15,458.43-21,333.93-8,745.26

Finding the Fourth Proportional to 15,458.43, 21,333.93 and 8,745.26

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Solution

The fourth proportional to 15,458.43, 21,333.93 and 8,745.26 is: 12,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.43 : 21,333.93 = 8,745.26 : x
  2. Step 2: Convert to fraction form
    15,458.43/21,333.93 = 8,745.26/x
  3. Step 3: Cross multiply
    15,458.43x = 21,333.93 × 8,745.26
  4. Step 4: Simplify right side
    15,458.43x = 186,570,658.00
  5. Step 5: Solve for x
    x = 186,570,658.00/15,458.43
  6. Step 6: Final answer
    x = 12,069.19

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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.