Home / 10,319.90-14,243.73-6,783.44

Finding the Fourth Proportional to 10,319.90, 14,243.73 and 6,783.44

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Solution

The fourth proportional to 10,319.90, 14,243.73 and 6,783.44 is: 9,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.90 : 14,243.73 = 6,783.44 : x
  2. Step 2: Convert to fraction form
    10,319.90/14,243.73 = 6,783.44/x
  3. Step 3: Cross multiply
    10,319.90x = 14,243.73 × 6,783.44
  4. Step 4: Simplify right side
    10,319.90x = 96,621,487.83
  5. Step 5: Solve for x
    x = 96,621,487.83/10,319.90
  6. Step 6: Final answer
    x = 9,362.64

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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.