Home / 13,294.26-18,345.60-7,985.94

Finding the Fourth Proportional to 13,294.26, 18,345.60 and 7,985.94

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Solution

The fourth proportional to 13,294.26, 18,345.60 and 7,985.94 is: 11,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.26 : 18,345.60 = 7,985.94 : x
  2. Step 2: Convert to fraction form
    13,294.26/18,345.60 = 7,985.94/x
  3. Step 3: Cross multiply
    13,294.26x = 18,345.60 × 7,985.94
  4. Step 4: Simplify right side
    13,294.26x = 146,506,860.86
  5. Step 5: Solve for x
    x = 146,506,860.86/13,294.26
  6. Step 6: Final answer
    x = 11,020.31

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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.