Home / 11,835.45-16,282.62-11,507.40

Finding the Fourth Proportional to 11,835.45, 16,282.62 and 11,507.40

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Solution

The fourth proportional to 11,835.45, 16,282.62 and 11,507.40 is: 15,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.45 : 16,282.62 = 11,507.40 : x
  2. Step 2: Convert to fraction form
    11,835.45/16,282.62 = 11,507.40/x
  3. Step 3: Cross multiply
    11,835.45x = 16,282.62 × 11,507.40
  4. Step 4: Simplify right side
    11,835.45x = 187,370,621.39
  5. Step 5: Solve for x
    x = 187,370,621.39/11,835.45
  6. Step 6: Final answer
    x = 15,831.31

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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.