Home / 14,085.74-19,442.66-8,121.39

Finding the Fourth Proportional to 14,085.74, 19,442.66 and 8,121.39

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Solution

The fourth proportional to 14,085.74, 19,442.66 and 8,121.39 is: 11,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.74 : 19,442.66 = 8,121.39 : x
  2. Step 2: Convert to fraction form
    14,085.74/19,442.66 = 8,121.39/x
  3. Step 3: Cross multiply
    14,085.74x = 19,442.66 × 8,121.39
  4. Step 4: Simplify right side
    14,085.74x = 157,901,383.89
  5. Step 5: Solve for x
    x = 157,901,383.89/14,085.74
  6. Step 6: Final answer
    x = 11,210.02

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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.