Home / 18,919.63-26,112.54-10,962.64

Finding the Fourth Proportional to 18,919.63, 26,112.54 and 10,962.64

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Solution

The fourth proportional to 18,919.63, 26,112.54 and 10,962.64 is: 15,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.63 : 26,112.54 = 10,962.64 : x
  2. Step 2: Convert to fraction form
    18,919.63/26,112.54 = 10,962.64/x
  3. Step 3: Cross multiply
    18,919.63x = 26,112.54 × 10,962.64
  4. Step 4: Simplify right side
    18,919.63x = 286,262,375.51
  5. Step 5: Solve for x
    x = 286,262,375.51/18,919.63
  6. Step 6: Final answer
    x = 15,130.44

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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.