Home / 19,419.05-26,798.85-10,921.21

Finding the Fourth Proportional to 19,419.05, 26,798.85 and 10,921.21

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Solution

The fourth proportional to 19,419.05, 26,798.85 and 10,921.21 is: 15,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.05 : 26,798.85 = 10,921.21 : x
  2. Step 2: Convert to fraction form
    19,419.05/26,798.85 = 10,921.21/x
  3. Step 3: Cross multiply
    19,419.05x = 26,798.85 × 10,921.21
  4. Step 4: Simplify right side
    19,419.05x = 292,675,801.61
  5. Step 5: Solve for x
    x = 292,675,801.61/19,419.05
  6. Step 6: Final answer
    x = 15,071.58

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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.