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Finding the Fourth Proportional to 12,443.16, 18,676.92 and 9,699.72

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Solution

The fourth proportional to 12,443.16, 18,676.92 and 9,699.72 is: 14,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.16 : 18,676.92 = 9,699.72 : x
  2. Step 2: Convert to fraction form
    12,443.16/18,676.92 = 9,699.72/x
  3. Step 3: Cross multiply
    12,443.16x = 18,676.92 × 9,699.72
  4. Step 4: Simplify right side
    12,443.16x = 181,160,894.46
  5. Step 5: Solve for x
    x = 181,160,894.46/12,443.16
  6. Step 6: Final answer
    x = 14,559.07

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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.