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Finding the Fourth Proportional to 19,155, 26,433.64 and 10,771.52

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Solution

The fourth proportional to 19,155, 26,433.64 and 10,771.52 is: 14,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155 : 26,433.64 = 10,771.52 : x
  2. Step 2: Convert to fraction form
    19,155/26,433.64 = 10,771.52/x
  3. Step 3: Cross multiply
    19,155x = 26,433.64 × 10,771.52
  4. Step 4: Simplify right side
    19,155x = 284,730,481.93
  5. Step 5: Solve for x
    x = 284,730,481.93/19,155
  6. Step 6: Final answer
    x = 14,864.55

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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.