Home / 19,418.32-26,798.56-10,921.28

Finding the Fourth Proportional to 19,418.32, 26,798.56 and 10,921.28

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Solution

The fourth proportional to 19,418.32, 26,798.56 and 10,921.28 is: 15,072.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.32 : 26,798.56 = 10,921.28 : x
  2. Step 2: Convert to fraction form
    19,418.32/26,798.56 = 10,921.28/x
  3. Step 3: Cross multiply
    19,418.32x = 26,798.56 × 10,921.28
  4. Step 4: Simplify right side
    19,418.32x = 292,674,577.36
  5. Step 5: Solve for x
    x = 292,674,577.36/19,418.32
  6. Step 6: Final answer
    x = 15,072.09

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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.