Home / 14,231.08-21,328.66-7,212.86

Finding the Fourth Proportional to 14,231.08, 21,328.66 and 7,212.86

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Solution

The fourth proportional to 14,231.08, 21,328.66 and 7,212.86 is: 10,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.08 : 21,328.66 = 7,212.86 : x
  2. Step 2: Convert to fraction form
    14,231.08/21,328.66 = 7,212.86/x
  3. Step 3: Cross multiply
    14,231.08x = 21,328.66 × 7,212.86
  4. Step 4: Simplify right side
    14,231.08x = 153,840,638.57
  5. Step 5: Solve for x
    x = 153,840,638.57/14,231.08
  6. Step 6: Final answer
    x = 10,810.19

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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.