Home / 12,004.36-16,559.12-7,221

Finding the Fourth Proportional to 12,004.36, 16,559.12 and 7,221

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Solution

The fourth proportional to 12,004.36, 16,559.12 and 7,221 is: 9,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.36 : 16,559.12 = 7,221 : x
  2. Step 2: Convert to fraction form
    12,004.36/16,559.12 = 7,221/x
  3. Step 3: Cross multiply
    12,004.36x = 16,559.12 × 7,221
  4. Step 4: Simplify right side
    12,004.36x = 119,573,405.52
  5. Step 5: Solve for x
    x = 119,573,405.52/12,004.36
  6. Step 6: Final answer
    x = 9,960.83

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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.