Home / 14,021.51-20,929.66-12,360.74

Finding the Fourth Proportional to 14,021.51, 20,929.66 and 12,360.74

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Solution

The fourth proportional to 14,021.51, 20,929.66 and 12,360.74 is: 18,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.51 : 20,929.66 = 12,360.74 : x
  2. Step 2: Convert to fraction form
    14,021.51/20,929.66 = 12,360.74/x
  3. Step 3: Cross multiply
    14,021.51x = 20,929.66 × 12,360.74
  4. Step 4: Simplify right side
    14,021.51x = 258,705,950.00
  5. Step 5: Solve for x
    x = 258,705,950.00/14,021.51
  6. Step 6: Final answer
    x = 18,450.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.