Home / 10,137.60-15,198.30-4,289.40

Finding the Fourth Proportional to 10,137.60, 15,198.30 and 4,289.40

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Solution

The fourth proportional to 10,137.60, 15,198.30 and 4,289.40 is: 6,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.60 : 15,198.30 = 4,289.40 : x
  2. Step 2: Convert to fraction form
    10,137.60/15,198.30 = 4,289.40/x
  3. Step 3: Cross multiply
    10,137.60x = 15,198.30 × 4,289.40
  4. Step 4: Simplify right side
    10,137.60x = 65,191,588.02
  5. Step 5: Solve for x
    x = 65,191,588.02/10,137.60
  6. Step 6: Final answer
    x = 6,430.67

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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.