Home / 13,456.74-18,570.20-7,488.44

Finding the Fourth Proportional to 13,456.74, 18,570.20 and 7,488.44

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Solution

The fourth proportional to 13,456.74, 18,570.20 and 7,488.44 is: 10,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.74 : 18,570.20 = 7,488.44 : x
  2. Step 2: Convert to fraction form
    13,456.74/18,570.20 = 7,488.44/x
  3. Step 3: Cross multiply
    13,456.74x = 18,570.20 × 7,488.44
  4. Step 4: Simplify right side
    13,456.74x = 139,061,698.19
  5. Step 5: Solve for x
    x = 139,061,698.19/13,456.74
  6. Step 6: Final answer
    x = 10,333.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.