Home / 19,015.60-28,520.70-6,536.20

Finding the Fourth Proportional to 19,015.60, 28,520.70 and 6,536.20

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Solution

The fourth proportional to 19,015.60, 28,520.70 and 6,536.20 is: 9,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.60 : 28,520.70 = 6,536.20 : x
  2. Step 2: Convert to fraction form
    19,015.60/28,520.70 = 6,536.20/x
  3. Step 3: Cross multiply
    19,015.60x = 28,520.70 × 6,536.20
  4. Step 4: Simplify right side
    19,015.60x = 186,416,999.34
  5. Step 5: Solve for x
    x = 186,416,999.34/19,015.60
  6. Step 6: Final answer
    x = 9,803.37

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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.