Home / 14,239.69-21,340.76-12,381.95

Finding the Fourth Proportional to 14,239.69, 21,340.76 and 12,381.95

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Solution

The fourth proportional to 14,239.69, 21,340.76 and 12,381.95 is: 18,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.69 : 21,340.76 = 12,381.95 : x
  2. Step 2: Convert to fraction form
    14,239.69/21,340.76 = 12,381.95/x
  3. Step 3: Cross multiply
    14,239.69x = 21,340.76 × 12,381.95
  4. Step 4: Simplify right side
    14,239.69x = 264,240,214.72
  5. Step 5: Solve for x
    x = 264,240,214.72/14,239.69
  6. Step 6: Final answer
    x = 18,556.60

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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.