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Finding the Fourth Proportional to 14,124.04, 21,163.02 and 7,189

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Solution

The fourth proportional to 14,124.04, 21,163.02 and 7,189 is: 10,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,124.04 : 21,163.02 = 7,189 : x
  2. Step 2: Convert to fraction form
    14,124.04/21,163.02 = 7,189/x
  3. Step 3: Cross multiply
    14,124.04x = 21,163.02 × 7,189
  4. Step 4: Simplify right side
    14,124.04x = 152,140,950.78
  5. Step 5: Solve for x
    x = 152,140,950.78/14,124.04
  6. Step 6: Final answer
    x = 10,771.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.