Home / 11,107.44-15,316.56-6,908.40

Finding the Fourth Proportional to 11,107.44, 15,316.56 and 6,908.40

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Solution

The fourth proportional to 11,107.44, 15,316.56 and 6,908.40 is: 9,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.44 : 15,316.56 = 6,908.40 : x
  2. Step 2: Convert to fraction form
    11,107.44/15,316.56 = 6,908.40/x
  3. Step 3: Cross multiply
    11,107.44x = 15,316.56 × 6,908.40
  4. Step 4: Simplify right side
    11,107.44x = 105,812,923.10
  5. Step 5: Solve for x
    x = 105,812,923.10/11,107.44
  6. Step 6: Final answer
    x = 9,526.31

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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.