Home / 12,087.99-16,681.41-6,783.30

Finding the Fourth Proportional to 12,087.99, 16,681.41 and 6,783.30

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Solution

The fourth proportional to 12,087.99, 16,681.41 and 6,783.30 is: 9,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.99 : 16,681.41 = 6,783.30 : x
  2. Step 2: Convert to fraction form
    12,087.99/16,681.41 = 6,783.30/x
  3. Step 3: Cross multiply
    12,087.99x = 16,681.41 × 6,783.30
  4. Step 4: Simplify right side
    12,087.99x = 113,155,008.45
  5. Step 5: Solve for x
    x = 113,155,008.45/12,087.99
  6. Step 6: Final answer
    x = 9,360.94

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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.