Home / 15,608.63-21,539.91-8,535.03

Finding the Fourth Proportional to 15,608.63, 21,539.91 and 8,535.03

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Solution

The fourth proportional to 15,608.63, 21,539.91 and 8,535.03 is: 11,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.63 : 21,539.91 = 8,535.03 : x
  2. Step 2: Convert to fraction form
    15,608.63/21,539.91 = 8,535.03/x
  3. Step 3: Cross multiply
    15,608.63x = 21,539.91 × 8,535.03
  4. Step 4: Simplify right side
    15,608.63x = 183,843,778.05
  5. Step 5: Solve for x
    x = 183,843,778.05/15,608.63
  6. Step 6: Final answer
    x = 11,778.35

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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.