Home / 13,700.48-20,550.40-7,852.80

Finding the Fourth Proportional to 13,700.48, 20,550.40 and 7,852.80

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Solution

The fourth proportional to 13,700.48, 20,550.40 and 7,852.80 is: 11,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.48 : 20,550.40 = 7,852.80 : x
  2. Step 2: Convert to fraction form
    13,700.48/20,550.40 = 7,852.80/x
  3. Step 3: Cross multiply
    13,700.48x = 20,550.40 × 7,852.80
  4. Step 4: Simplify right side
    13,700.48x = 161,378,181.12
  5. Step 5: Solve for x
    x = 161,378,181.12/13,700.48
  6. Step 6: Final answer
    x = 11,779.02

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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.