Home / 11,109.32-15,325.63-7,923.32

Finding the Fourth Proportional to 11,109.32, 15,325.63 and 7,923.32

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Solution

The fourth proportional to 11,109.32, 15,325.63 and 7,923.32 is: 10,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.32 : 15,325.63 = 7,923.32 : x
  2. Step 2: Convert to fraction form
    11,109.32/15,325.63 = 7,923.32/x
  3. Step 3: Cross multiply
    11,109.32x = 15,325.63 × 7,923.32
  4. Step 4: Simplify right side
    11,109.32x = 121,429,774.26
  5. Step 5: Solve for x
    x = 121,429,774.26/11,109.32
  6. Step 6: Final answer
    x = 10,930.45

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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.