Home / 10,239.36-15,369.72-9,076.80

Finding the Fourth Proportional to 10,239.36, 15,369.72 and 9,076.80

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Solution

The fourth proportional to 10,239.36, 15,369.72 and 9,076.80 is: 13,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.36 : 15,369.72 = 9,076.80 : x
  2. Step 2: Convert to fraction form
    10,239.36/15,369.72 = 9,076.80/x
  3. Step 3: Cross multiply
    10,239.36x = 15,369.72 × 9,076.80
  4. Step 4: Simplify right side
    10,239.36x = 139,507,874.50
  5. Step 5: Solve for x
    x = 139,507,874.50/10,239.36
  6. Step 6: Final answer
    x = 13,624.67

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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.