Home / 10,137.20-13,982.30-9,300.67

Finding the Fourth Proportional to 10,137.20, 13,982.30 and 9,300.67

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Solution

The fourth proportional to 10,137.20, 13,982.30 and 9,300.67 is: 12,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.20 : 13,982.30 = 9,300.67 : x
  2. Step 2: Convert to fraction form
    10,137.20/13,982.30 = 9,300.67/x
  3. Step 3: Cross multiply
    10,137.20x = 13,982.30 × 9,300.67
  4. Step 4: Simplify right side
    10,137.20x = 130,044,764.05
  5. Step 5: Solve for x
    x = 130,044,764.05/10,137.20
  6. Step 6: Final answer
    x = 12,828.47

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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.