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Finding the Fourth Proportional to 17,779.65, 26,669.31 and 7,247.21

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Solution

The fourth proportional to 17,779.65, 26,669.31 and 7,247.21 is: 10,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.65 : 26,669.31 = 7,247.21 : x
  2. Step 2: Convert to fraction form
    17,779.65/26,669.31 = 7,247.21/x
  3. Step 3: Cross multiply
    17,779.65x = 26,669.31 × 7,247.21
  4. Step 4: Simplify right side
    17,779.65x = 193,277,956.78
  5. Step 5: Solve for x
    x = 193,277,956.78/17,779.65
  6. Step 6: Final answer
    x = 10,870.74

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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.