Home / 13,235.90-18,274.04-8,765.67

Finding the Fourth Proportional to 13,235.90, 18,274.04 and 8,765.67

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Solution

The fourth proportional to 13,235.90, 18,274.04 and 8,765.67 is: 12,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.90 : 18,274.04 = 8,765.67 : x
  2. Step 2: Convert to fraction form
    13,235.90/18,274.04 = 8,765.67/x
  3. Step 3: Cross multiply
    13,235.90x = 18,274.04 × 8,765.67
  4. Step 4: Simplify right side
    13,235.90x = 160,184,160.38
  5. Step 5: Solve for x
    x = 160,184,160.38/13,235.90
  6. Step 6: Final answer
    x = 12,102.25

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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.