Home / 13,283.16-18,299.57-9,243.03

Finding the Fourth Proportional to 13,283.16, 18,299.57 and 9,243.03

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Solution

The fourth proportional to 13,283.16, 18,299.57 and 9,243.03 is: 12,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.16 : 18,299.57 = 9,243.03 : x
  2. Step 2: Convert to fraction form
    13,283.16/18,299.57 = 9,243.03/x
  3. Step 3: Cross multiply
    13,283.16x = 18,299.57 × 9,243.03
  4. Step 4: Simplify right side
    13,283.16x = 169,143,595.88
  5. Step 5: Solve for x
    x = 169,143,595.88/13,283.16
  6. Step 6: Final answer
    x = 12,733.69

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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.