Home / 14,143.68-19,529.76-12,648.96

Finding the Fourth Proportional to 14,143.68, 19,529.76 and 12,648.96

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Solution

The fourth proportional to 14,143.68, 19,529.76 and 12,648.96 is: 17,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.68 : 19,529.76 = 12,648.96 : x
  2. Step 2: Convert to fraction form
    14,143.68/19,529.76 = 12,648.96/x
  3. Step 3: Cross multiply
    14,143.68x = 19,529.76 × 12,648.96
  4. Step 4: Simplify right side
    14,143.68x = 247,031,153.05
  5. Step 5: Solve for x
    x = 247,031,153.05/14,143.68
  6. Step 6: Final answer
    x = 17,465.83

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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.