Home / 13,669.63-18,863.55-7,702.49

Finding the Fourth Proportional to 13,669.63, 18,863.55 and 7,702.49

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Solution

The fourth proportional to 13,669.63, 18,863.55 and 7,702.49 is: 10,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.63 : 18,863.55 = 7,702.49 : x
  2. Step 2: Convert to fraction form
    13,669.63/18,863.55 = 7,702.49/x
  3. Step 3: Cross multiply
    13,669.63x = 18,863.55 × 7,702.49
  4. Step 4: Simplify right side
    13,669.63x = 145,296,352.40
  5. Step 5: Solve for x
    x = 145,296,352.40/13,669.63
  6. Step 6: Final answer
    x = 10,629.14

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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.