Home / 13,348.44-18,421.71-7,683.87

Finding the Fourth Proportional to 13,348.44, 18,421.71 and 7,683.87

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Solution

The fourth proportional to 13,348.44, 18,421.71 and 7,683.87 is: 10,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.44 : 18,421.71 = 7,683.87 : x
  2. Step 2: Convert to fraction form
    13,348.44/18,421.71 = 7,683.87/x
  3. Step 3: Cross multiply
    13,348.44x = 18,421.71 × 7,683.87
  4. Step 4: Simplify right side
    13,348.44x = 141,550,024.82
  5. Step 5: Solve for x
    x = 141,550,024.82/13,348.44
  6. Step 6: Final answer
    x = 10,604.24

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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.