Home / 11,150.51-15,358.13-8,308.77

Finding the Fourth Proportional to 11,150.51, 15,358.13 and 8,308.77

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Solution

The fourth proportional to 11,150.51, 15,358.13 and 8,308.77 is: 11,444.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.51 : 15,358.13 = 8,308.77 : x
  2. Step 2: Convert to fraction form
    11,150.51/15,358.13 = 8,308.77/x
  3. Step 3: Cross multiply
    11,150.51x = 15,358.13 × 8,308.77
  4. Step 4: Simplify right side
    11,150.51x = 127,607,169.80
  5. Step 5: Solve for x
    x = 127,607,169.80/11,150.51
  6. Step 6: Final answer
    x = 11,444.07

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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.