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Finding the Fourth Proportional to 17,913.65, 26,870.54 and 5,433.78

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Solution

The fourth proportional to 17,913.65, 26,870.54 and 5,433.78 is: 8,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.65 : 26,870.54 = 5,433.78 : x
  2. Step 2: Convert to fraction form
    17,913.65/26,870.54 = 5,433.78/x
  3. Step 3: Cross multiply
    17,913.65x = 26,870.54 × 5,433.78
  4. Step 4: Simplify right side
    17,913.65x = 146,008,707.00
  5. Step 5: Solve for x
    x = 146,008,707.00/17,913.65
  6. Step 6: Final answer
    x = 8,150.70

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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.