Home / 10,359.60-15,533.73-8,161.80

Finding the Fourth Proportional to 10,359.60, 15,533.73 and 8,161.80

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Solution

The fourth proportional to 10,359.60, 15,533.73 and 8,161.80 is: 12,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.60 : 15,533.73 = 8,161.80 : x
  2. Step 2: Convert to fraction form
    10,359.60/15,533.73 = 8,161.80/x
  3. Step 3: Cross multiply
    10,359.60x = 15,533.73 × 8,161.80
  4. Step 4: Simplify right side
    10,359.60x = 126,783,197.51
  5. Step 5: Solve for x
    x = 126,783,197.51/10,359.60
  6. Step 6: Final answer
    x = 12,238.23

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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.