Home / 17,439.45-26,162.80-9,117.21

Finding the Fourth Proportional to 17,439.45, 26,162.80 and 9,117.21

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Solution

The fourth proportional to 17,439.45, 26,162.80 and 9,117.21 is: 13,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,439.45 : 26,162.80 = 9,117.21 : x
  2. Step 2: Convert to fraction form
    17,439.45/26,162.80 = 9,117.21/x
  3. Step 3: Cross multiply
    17,439.45x = 26,162.80 × 9,117.21
  4. Step 4: Simplify right side
    17,439.45x = 238,531,669.94
  5. Step 5: Solve for x
    x = 238,531,669.94/17,439.45
  6. Step 6: Final answer
    x = 13,677.70

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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.