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Finding the Fourth Proportional to 17,779.51, 26,637.67 and 8,409.43

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Solution

The fourth proportional to 17,779.51, 26,637.67 and 8,409.43 is: 12,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.51 : 26,637.67 = 8,409.43 : x
  2. Step 2: Convert to fraction form
    17,779.51/26,637.67 = 8,409.43/x
  3. Step 3: Cross multiply
    17,779.51x = 26,637.67 × 8,409.43
  4. Step 4: Simplify right side
    17,779.51x = 224,007,621.23
  5. Step 5: Solve for x
    x = 224,007,621.23/17,779.51
  6. Step 6: Final answer
    x = 12,599.20

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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.