Home / 13,763.34-18,993.33-7,475.76

Finding the Fourth Proportional to 13,763.34, 18,993.33 and 7,475.76

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Solution

The fourth proportional to 13,763.34, 18,993.33 and 7,475.76 is: 10,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.34 : 18,993.33 = 7,475.76 : x
  2. Step 2: Convert to fraction form
    13,763.34/18,993.33 = 7,475.76/x
  3. Step 3: Cross multiply
    13,763.34x = 18,993.33 × 7,475.76
  4. Step 4: Simplify right side
    13,763.34x = 141,989,576.68
  5. Step 5: Solve for x
    x = 141,989,576.68/13,763.34
  6. Step 6: Final answer
    x = 10,316.51

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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.