Home / 13,763.77-18,851.68-12,955.87

Finding the Fourth Proportional to 13,763.77, 18,851.68 and 12,955.87

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Solution

The fourth proportional to 13,763.77, 18,851.68 and 12,955.87 is: 17,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.77 : 18,851.68 = 12,955.87 : x
  2. Step 2: Convert to fraction form
    13,763.77/18,851.68 = 12,955.87/x
  3. Step 3: Cross multiply
    13,763.77x = 18,851.68 × 12,955.87
  4. Step 4: Simplify right side
    13,763.77x = 244,239,915.36
  5. Step 5: Solve for x
    x = 244,239,915.36/13,763.77
  6. Step 6: Final answer
    x = 17,745.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.