Home / 12,011.21-16,581.00-9,028.01

Finding the Fourth Proportional to 12,011.21, 16,581.00 and 9,028.01

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Solution

The fourth proportional to 12,011.21, 16,581.00 and 9,028.01 is: 12,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.21 : 16,581.00 = 9,028.01 : x
  2. Step 2: Convert to fraction form
    12,011.21/16,581.00 = 9,028.01/x
  3. Step 3: Cross multiply
    12,011.21x = 16,581.00 × 9,028.01
  4. Step 4: Simplify right side
    12,011.21x = 149,693,305.76
  5. Step 5: Solve for x
    x = 149,693,305.76/12,011.21
  6. Step 6: Final answer
    x = 12,462.80

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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.