Home / 14,111.10-21,108.33-12,828.06

Finding the Fourth Proportional to 14,111.10, 21,108.33 and 12,828.06

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Solution

The fourth proportional to 14,111.10, 21,108.33 and 12,828.06 is: 19,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.10 : 21,108.33 = 12,828.06 : x
  2. Step 2: Convert to fraction form
    14,111.10/21,108.33 = 12,828.06/x
  3. Step 3: Cross multiply
    14,111.10x = 21,108.33 × 12,828.06
  4. Step 4: Simplify right side
    14,111.10x = 270,778,923.74
  5. Step 5: Solve for x
    x = 270,778,923.74/14,111.10
  6. Step 6: Final answer
    x = 19,189.07

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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.