Home / 11,941.34-17,905.06-8,780.67

Finding the Fourth Proportional to 11,941.34, 17,905.06 and 8,780.67

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Solution

The fourth proportional to 11,941.34, 17,905.06 and 8,780.67 is: 13,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,941.34 : 17,905.06 = 8,780.67 : x
  2. Step 2: Convert to fraction form
    11,941.34/17,905.06 = 8,780.67/x
  3. Step 3: Cross multiply
    11,941.34x = 17,905.06 × 8,780.67
  4. Step 4: Simplify right side
    11,941.34x = 157,218,423.19
  5. Step 5: Solve for x
    x = 157,218,423.19/11,941.34
  6. Step 6: Final answer
    x = 13,165.89

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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.