Home / 9,688.80-13,370.80-5,497.36

Finding the Fourth Proportional to 9,688.80, 13,370.80 and 5,497.36

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Solution

The fourth proportional to 9,688.80, 13,370.80 and 5,497.36 is: 7,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.80 : 13,370.80 = 5,497.36 : x
  2. Step 2: Convert to fraction form
    9,688.80/13,370.80 = 5,497.36/x
  3. Step 3: Cross multiply
    9,688.80x = 13,370.80 × 5,497.36
  4. Step 4: Simplify right side
    9,688.80x = 73,504,101.09
  5. Step 5: Solve for x
    x = 73,504,101.09/9,688.80
  6. Step 6: Final answer
    x = 7,586.50

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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.