Home / 15,083.36-20,814.70-8,368.89

Finding the Fourth Proportional to 15,083.36, 20,814.70 and 8,368.89

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Solution

The fourth proportional to 15,083.36, 20,814.70 and 8,368.89 is: 11,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.36 : 20,814.70 = 8,368.89 : x
  2. Step 2: Convert to fraction form
    15,083.36/20,814.70 = 8,368.89/x
  3. Step 3: Cross multiply
    15,083.36x = 20,814.70 × 8,368.89
  4. Step 4: Simplify right side
    15,083.36x = 174,196,003.48
  5. Step 5: Solve for x
    x = 174,196,003.48/15,083.36
  6. Step 6: Final answer
    x = 11,548.88

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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.