Home / 14,783.56-20,401.38-8,069.36

Finding the Fourth Proportional to 14,783.56, 20,401.38 and 8,069.36

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Solution

The fourth proportional to 14,783.56, 20,401.38 and 8,069.36 is: 11,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.56 : 20,401.38 = 8,069.36 : x
  2. Step 2: Convert to fraction form
    14,783.56/20,401.38 = 8,069.36/x
  3. Step 3: Cross multiply
    14,783.56x = 20,401.38 × 8,069.36
  4. Step 4: Simplify right side
    14,783.56x = 164,625,977.71
  5. Step 5: Solve for x
    x = 164,625,977.71/14,783.56
  6. Step 6: Final answer
    x = 11,135.75

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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.