Home / 10,360.80-15,539.40-3,783.60

Finding the Fourth Proportional to 10,360.80, 15,539.40 and 3,783.60

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Solution

The fourth proportional to 10,360.80, 15,539.40 and 3,783.60 is: 5,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.80 : 15,539.40 = 3,783.60 : x
  2. Step 2: Convert to fraction form
    10,360.80/15,539.40 = 3,783.60/x
  3. Step 3: Cross multiply
    10,360.80x = 15,539.40 × 3,783.60
  4. Step 4: Simplify right side
    10,360.80x = 58,794,873.84
  5. Step 5: Solve for x
    x = 58,794,873.84/10,360.80
  6. Step 6: Final answer
    x = 5,674.74

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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.