Home / 18,913.36-26,100.21-10,415.30

Finding the Fourth Proportional to 18,913.36, 26,100.21 and 10,415.30

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Solution

The fourth proportional to 18,913.36, 26,100.21 and 10,415.30 is: 14,372.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.36 : 26,100.21 = 10,415.30 : x
  2. Step 2: Convert to fraction form
    18,913.36/26,100.21 = 10,415.30/x
  3. Step 3: Cross multiply
    18,913.36x = 26,100.21 × 10,415.30
  4. Step 4: Simplify right side
    18,913.36x = 271,841,517.21
  5. Step 5: Solve for x
    x = 271,841,517.21/18,913.36
  6. Step 6: Final answer
    x = 14,372.99

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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.