Home / 16,785.21-23,161.78-9,710.31

Finding the Fourth Proportional to 16,785.21, 23,161.78 and 9,710.31

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Solution

The fourth proportional to 16,785.21, 23,161.78 and 9,710.31 is: 13,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.21 : 23,161.78 = 9,710.31 : x
  2. Step 2: Convert to fraction form
    16,785.21/23,161.78 = 9,710.31/x
  3. Step 3: Cross multiply
    16,785.21x = 23,161.78 × 9,710.31
  4. Step 4: Simplify right side
    16,785.21x = 224,908,063.95
  5. Step 5: Solve for x
    x = 224,908,063.95/16,785.21
  6. Step 6: Final answer
    x = 13,399.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.