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Finding the Fourth Proportional to 19,207, 26,449.50 and 18,397.72

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Solution

The fourth proportional to 19,207, 26,449.50 and 18,397.72 is: 25,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207 : 26,449.50 = 18,397.72 : x
  2. Step 2: Convert to fraction form
    19,207/26,449.50 = 18,397.72/x
  3. Step 3: Cross multiply
    19,207x = 26,449.50 × 18,397.72
  4. Step 4: Simplify right side
    19,207x = 486,610,495.14
  5. Step 5: Solve for x
    x = 486,610,495.14/19,207
  6. Step 6: Final answer
    x = 25,335.06

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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.