Home / 11,429.60-15,774.30-6,394.10

Finding the Fourth Proportional to 11,429.60, 15,774.30 and 6,394.10

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Solution

The fourth proportional to 11,429.60, 15,774.30 and 6,394.10 is: 8,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.60 : 15,774.30 = 6,394.10 : x
  2. Step 2: Convert to fraction form
    11,429.60/15,774.30 = 6,394.10/x
  3. Step 3: Cross multiply
    11,429.60x = 15,774.30 × 6,394.10
  4. Step 4: Simplify right side
    11,429.60x = 100,862,451.63
  5. Step 5: Solve for x
    x = 100,862,451.63/11,429.60
  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.