Home / 12,823.41-17,676.91-9,985.77

Finding the Fourth Proportional to 12,823.41, 17,676.91 and 9,985.77

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Solution

The fourth proportional to 12,823.41, 17,676.91 and 9,985.77 is: 13,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.41 : 17,676.91 = 9,985.77 : x
  2. Step 2: Convert to fraction form
    12,823.41/17,676.91 = 9,985.77/x
  3. Step 3: Cross multiply
    12,823.41x = 17,676.91 × 9,985.77
  4. Step 4: Simplify right side
    12,823.41x = 176,517,557.57
  5. Step 5: Solve for x
    x = 176,517,557.57/12,823.41
  6. Step 6: Final answer
    x = 13,765.26

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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.