Home / 13,297.49-18,349.71-7,329.21

Finding the Fourth Proportional to 13,297.49, 18,349.71 and 7,329.21

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Solution

The fourth proportional to 13,297.49, 18,349.71 and 7,329.21 is: 10,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.49 : 18,349.71 = 7,329.21 : x
  2. Step 2: Convert to fraction form
    13,297.49/18,349.71 = 7,329.21/x
  3. Step 3: Cross multiply
    13,297.49x = 18,349.71 × 7,329.21
  4. Step 4: Simplify right side
    13,297.49x = 134,488,749.63
  5. Step 5: Solve for x
    x = 134,488,749.63/13,297.49
  6. Step 6: Final answer
    x = 10,113.85

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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.