Home / 13,283.34-18,198.26-12,785.10

Finding the Fourth Proportional to 13,283.34, 18,198.26 and 12,785.10

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Solution

The fourth proportional to 13,283.34, 18,198.26 and 12,785.10 is: 17,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.34 : 18,198.26 = 12,785.10 : x
  2. Step 2: Convert to fraction form
    13,283.34/18,198.26 = 12,785.10/x
  3. Step 3: Cross multiply
    13,283.34x = 18,198.26 × 12,785.10
  4. Step 4: Simplify right side
    13,283.34x = 232,666,510.00
  5. Step 5: Solve for x
    x = 232,666,510.00/13,283.34
  6. Step 6: Final answer
    x = 17,515.66

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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.