Home / 14,106.09-19,455.75-8,440.41

Finding the Fourth Proportional to 14,106.09, 19,455.75 and 8,440.41

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Solution

The fourth proportional to 14,106.09, 19,455.75 and 8,440.41 is: 11,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.09 : 19,455.75 = 8,440.41 : x
  2. Step 2: Convert to fraction form
    14,106.09/19,455.75 = 8,440.41/x
  3. Step 3: Cross multiply
    14,106.09x = 19,455.75 × 8,440.41
  4. Step 4: Simplify right side
    14,106.09x = 164,214,506.86
  5. Step 5: Solve for x
    x = 164,214,506.86/14,106.09
  6. Step 6: Final answer
    x = 11,641.39

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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.