Home / 11,919.06-16,448.40-7,206.48

Finding the Fourth Proportional to 11,919.06, 16,448.40 and 7,206.48

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Solution

The fourth proportional to 11,919.06, 16,448.40 and 7,206.48 is: 9,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.06 : 16,448.40 = 7,206.48 : x
  2. Step 2: Convert to fraction form
    11,919.06/16,448.40 = 7,206.48/x
  3. Step 3: Cross multiply
    11,919.06x = 16,448.40 × 7,206.48
  4. Step 4: Simplify right side
    11,919.06x = 118,535,065.63
  5. Step 5: Solve for x
    x = 118,535,065.63/11,919.06
  6. Step 6: Final answer
    x = 9,945.00

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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.