Home / 13,102.31-18,078.08-7,435.82

Finding the Fourth Proportional to 13,102.31, 18,078.08 and 7,435.82

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Solution

The fourth proportional to 13,102.31, 18,078.08 and 7,435.82 is: 10,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.31 : 18,078.08 = 7,435.82 : x
  2. Step 2: Convert to fraction form
    13,102.31/18,078.08 = 7,435.82/x
  3. Step 3: Cross multiply
    13,102.31x = 18,078.08 × 7,435.82
  4. Step 4: Simplify right side
    13,102.31x = 134,425,348.83
  5. Step 5: Solve for x
    x = 134,425,348.83/13,102.31
  6. Step 6: Final answer
    x = 10,259.67

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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.