Home / 13,370.86-20,063.31-7,835.05

Finding the Fourth Proportional to 13,370.86, 20,063.31 and 7,835.05

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Solution

The fourth proportional to 13,370.86, 20,063.31 and 7,835.05 is: 11,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.86 : 20,063.31 = 7,835.05 : x
  2. Step 2: Convert to fraction form
    13,370.86/20,063.31 = 7,835.05/x
  3. Step 3: Cross multiply
    13,370.86x = 20,063.31 × 7,835.05
  4. Step 4: Simplify right side
    13,370.86x = 157,197,037.02
  5. Step 5: Solve for x
    x = 157,197,037.02/13,370.86
  6. Step 6: Final answer
    x = 11,756.69

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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.