Home / 10,050.40-13,880.40-7,838.56

Finding the Fourth Proportional to 10,050.40, 13,880.40 and 7,838.56

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Solution

The fourth proportional to 10,050.40, 13,880.40 and 7,838.56 is: 10,825.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,050.40 : 13,880.40 = 7,838.56 : x
  2. Step 2: Convert to fraction form
    10,050.40/13,880.40 = 7,838.56/x
  3. Step 3: Cross multiply
    10,050.40x = 13,880.40 × 7,838.56
  4. Step 4: Simplify right side
    10,050.40x = 108,802,348.22
  5. Step 5: Solve for x
    x = 108,802,348.22/10,050.40
  6. Step 6: Final answer
    x = 10,825.67

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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.