Home / 19,484.28-26,892.78-11,421.60

Finding the Fourth Proportional to 19,484.28, 26,892.78 and 11,421.60

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Solution

The fourth proportional to 19,484.28, 26,892.78 and 11,421.60 is: 15,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.28 : 26,892.78 = 11,421.60 : x
  2. Step 2: Convert to fraction form
    19,484.28/26,892.78 = 11,421.60/x
  3. Step 3: Cross multiply
    19,484.28x = 26,892.78 × 11,421.60
  4. Step 4: Simplify right side
    19,484.28x = 307,158,576.05
  5. Step 5: Solve for x
    x = 307,158,576.05/19,484.28
  6. Step 6: Final answer
    x = 15,764.43

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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.