Home / 12,087.90-18,130.46-5,842.67

Finding the Fourth Proportional to 12,087.90, 18,130.46 and 5,842.67

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Solution

The fourth proportional to 12,087.90, 18,130.46 and 5,842.67 is: 8,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.90 : 18,130.46 = 5,842.67 : x
  2. Step 2: Convert to fraction form
    12,087.90/18,130.46 = 5,842.67/x
  3. Step 3: Cross multiply
    12,087.90x = 18,130.46 × 5,842.67
  4. Step 4: Simplify right side
    12,087.90x = 105,930,174.86
  5. Step 5: Solve for x
    x = 105,930,174.86/12,087.90
  6. Step 6: Final answer
    x = 8,763.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.