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Finding the Fourth Proportional to 7,038.80, 10,548.48 and 6,828.56

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Solution

The fourth proportional to 7,038.80, 10,548.48 and 6,828.56 is: 10,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.80 : 10,548.48 = 6,828.56 : x
  2. Step 2: Convert to fraction form
    7,038.80/10,548.48 = 6,828.56/x
  3. Step 3: Cross multiply
    7,038.80x = 10,548.48 × 6,828.56
  4. Step 4: Simplify right side
    7,038.80x = 72,030,928.59
  5. Step 5: Solve for x
    x = 72,030,928.59/7,038.80
  6. Step 6: Final answer
    x = 10,233.41

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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.