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Finding the Fourth Proportional to 18,858.97, 26,030.06 and 10,900.05

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Solution

The fourth proportional to 18,858.97, 26,030.06 and 10,900.05 is: 15,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.97 : 26,030.06 = 10,900.05 : x
  2. Step 2: Convert to fraction form
    18,858.97/26,030.06 = 10,900.05/x
  3. Step 3: Cross multiply
    18,858.97x = 26,030.06 × 10,900.05
  4. Step 4: Simplify right side
    18,858.97x = 283,728,955.50
  5. Step 5: Solve for x
    x = 283,728,955.50/18,858.97
  6. Step 6: Final answer
    x = 15,044.77

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Half scale
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Double scale
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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.