Home / 13,339.03-20,015.52-8,657.93

Finding the Fourth Proportional to 13,339.03, 20,015.52 and 8,657.93

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Solution

The fourth proportional to 13,339.03, 20,015.52 and 8,657.93 is: 12,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.03 : 20,015.52 = 8,657.93 : x
  2. Step 2: Convert to fraction form
    13,339.03/20,015.52 = 8,657.93/x
  3. Step 3: Cross multiply
    13,339.03x = 20,015.52 × 8,657.93
  4. Step 4: Simplify right side
    13,339.03x = 173,292,971.07
  5. Step 5: Solve for x
    x = 173,292,971.07/13,339.03
  6. Step 6: Final answer
    x = 12,991.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.