Home / 18,917.36-26,107.56-10,962.32

Finding the Fourth Proportional to 18,917.36, 26,107.56 and 10,962.32

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Solution

The fourth proportional to 18,917.36, 26,107.56 and 10,962.32 is: 15,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.36 : 26,107.56 = 10,962.32 : x
  2. Step 2: Convert to fraction form
    18,917.36/26,107.56 = 10,962.32/x
  3. Step 3: Cross multiply
    18,917.36x = 26,107.56 × 10,962.32
  4. Step 4: Simplify right side
    18,917.36x = 286,199,427.14
  5. Step 5: Solve for x
    x = 286,199,427.14/18,917.36
  6. Step 6: Final answer
    x = 15,128.93

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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.