Home / 11,859.75-16,366.46-7,145.01

Finding the Fourth Proportional to 11,859.75, 16,366.46 and 7,145.01

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Solution

The fourth proportional to 11,859.75, 16,366.46 and 7,145.01 is: 9,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.75 : 16,366.46 = 7,145.01 : x
  2. Step 2: Convert to fraction form
    11,859.75/16,366.46 = 7,145.01/x
  3. Step 3: Cross multiply
    11,859.75x = 16,366.46 × 7,145.01
  4. Step 4: Simplify right side
    11,859.75x = 116,938,484.64
  5. Step 5: Solve for x
    x = 116,938,484.64/11,859.75
  6. Step 6: Final answer
    x = 9,860.11

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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.