Home / 11,103-15,315.66-6,912.60

Finding the Fourth Proportional to 11,103, 15,315.66 and 6,912.60

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Solution

The fourth proportional to 11,103, 15,315.66 and 6,912.60 is: 9,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103 : 15,315.66 = 6,912.60 : x
  2. Step 2: Convert to fraction form
    11,103/15,315.66 = 6,912.60/x
  3. Step 3: Cross multiply
    11,103x = 15,315.66 × 6,912.60
  4. Step 4: Simplify right side
    11,103x = 105,871,031.32
  5. Step 5: Solve for x
    x = 105,871,031.32/11,103
  6. Step 6: Final answer
    x = 9,535.35

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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.