Home / 15,284.48-21,073.54-12,091.48

Finding the Fourth Proportional to 15,284.48, 21,073.54 and 12,091.48

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Solution

The fourth proportional to 15,284.48, 21,073.54 and 12,091.48 is: 16,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.48 : 21,073.54 = 12,091.48 : x
  2. Step 2: Convert to fraction form
    15,284.48/21,073.54 = 12,091.48/x
  3. Step 3: Cross multiply
    15,284.48x = 21,073.54 × 12,091.48
  4. Step 4: Simplify right side
    15,284.48x = 254,810,287.44
  5. Step 5: Solve for x
    x = 254,810,287.44/15,284.48
  6. Step 6: Final answer
    x = 16,671.18

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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.