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Finding the Fourth Proportional to 17,155, 25,731.74 and 6,630.04

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Solution

The fourth proportional to 17,155, 25,731.74 and 6,630.04 is: 9,944.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155 : 25,731.74 = 6,630.04 : x
  2. Step 2: Convert to fraction form
    17,155/25,731.74 = 6,630.04/x
  3. Step 3: Cross multiply
    17,155x = 25,731.74 × 6,630.04
  4. Step 4: Simplify right side
    17,155x = 170,602,465.47
  5. Step 5: Solve for x
    x = 170,602,465.47/17,155
  6. Step 6: Final answer
    x = 9,944.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.