Home / 13,333.14-18,403.40-8,294.36

Finding the Fourth Proportional to 13,333.14, 18,403.40 and 8,294.36

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Solution

The fourth proportional to 13,333.14, 18,403.40 and 8,294.36 is: 11,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.14 : 18,403.40 = 8,294.36 : x
  2. Step 2: Convert to fraction form
    13,333.14/18,403.40 = 8,294.36/x
  3. Step 3: Cross multiply
    13,333.14x = 18,403.40 × 8,294.36
  4. Step 4: Simplify right side
    13,333.14x = 152,644,291.34
  5. Step 5: Solve for x
    x = 152,644,291.34/13,333.14
  6. Step 6: Final answer
    x = 11,448.49

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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.