Home / 11,145.16-15,366.86-9,629.98

Finding the Fourth Proportional to 11,145.16, 15,366.86 and 9,629.98

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Solution

The fourth proportional to 11,145.16, 15,366.86 and 9,629.98 is: 13,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.16 : 15,366.86 = 9,629.98 : x
  2. Step 2: Convert to fraction form
    11,145.16/15,366.86 = 9,629.98/x
  3. Step 3: Cross multiply
    11,145.16x = 15,366.86 × 9,629.98
  4. Step 4: Simplify right side
    11,145.16x = 147,982,536.57
  5. Step 5: Solve for x
    x = 147,982,536.57/11,145.16
  6. Step 6: Final answer
    x = 13,277.74

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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.