Home / 11,783.04-16,265.50-8,427.20

Finding the Fourth Proportional to 11,783.04, 16,265.50 and 8,427.20

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Solution

The fourth proportional to 11,783.04, 16,265.50 and 8,427.20 is: 11,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.04 : 16,265.50 = 8,427.20 : x
  2. Step 2: Convert to fraction form
    11,783.04/16,265.50 = 8,427.20/x
  3. Step 3: Cross multiply
    11,783.04x = 16,265.50 × 8,427.20
  4. Step 4: Simplify right side
    11,783.04x = 137,072,621.60
  5. Step 5: Solve for x
    x = 137,072,621.60/11,783.04
  6. Step 6: Final answer
    x = 11,633.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.