Home / 14,783.94-20,401.91-8,069.72

Finding the Fourth Proportional to 14,783.94, 20,401.91 and 8,069.72

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Solution

The fourth proportional to 14,783.94, 20,401.91 and 8,069.72 is: 11,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.94 : 20,401.91 = 8,069.72 : x
  2. Step 2: Convert to fraction form
    14,783.94/20,401.91 = 8,069.72/x
  3. Step 3: Cross multiply
    14,783.94x = 20,401.91 × 8,069.72
  4. Step 4: Simplify right side
    14,783.94x = 164,637,558.81
  5. Step 5: Solve for x
    x = 164,637,558.81/14,783.94
  6. Step 6: Final answer
    x = 11,136.24

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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.