Home / 11,009.07-16,509.65-3,987.27

Finding the Fourth Proportional to 11,009.07, 16,509.65 and 3,987.27

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Solution

The fourth proportional to 11,009.07, 16,509.65 and 3,987.27 is: 5,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.07 : 16,509.65 = 3,987.27 : x
  2. Step 2: Convert to fraction form
    11,009.07/16,509.65 = 3,987.27/x
  3. Step 3: Cross multiply
    11,009.07x = 16,509.65 × 3,987.27
  4. Step 4: Simplify right side
    11,009.07x = 65,828,412.22
  5. Step 5: Solve for x
    x = 65,828,412.22/11,009.07
  6. Step 6: Final answer
    x = 5,979.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.