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Finding the Fourth Proportional to 11,430.58, 15,774.46 and 6,394.58

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Solution

The fourth proportional to 11,430.58, 15,774.46 and 6,394.58 is: 8,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.58 : 15,774.46 = 6,394.58 : x
  2. Step 2: Convert to fraction form
    11,430.58/15,774.46 = 6,394.58/x
  3. Step 3: Cross multiply
    11,430.58x = 15,774.46 × 6,394.58
  4. Step 4: Simplify right side
    11,430.58x = 100,871,046.43
  5. Step 5: Solve for x
    x = 100,871,046.43/11,430.58
  6. Step 6: Final answer
    x = 8,824.67

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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.