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Finding the Fourth Proportional to 16,555.40, 24,833.10 and 8,779.40

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Solution

The fourth proportional to 16,555.40, 24,833.10 and 8,779.40 is: 13,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,555.40 : 24,833.10 = 8,779.40 : x
  2. Step 2: Convert to fraction form
    16,555.40/24,833.10 = 8,779.40/x
  3. Step 3: Cross multiply
    16,555.40x = 24,833.10 × 8,779.40
  4. Step 4: Simplify right side
    16,555.40x = 218,019,718.14
  5. Step 5: Solve for x
    x = 218,019,718.14/16,555.40
  6. Step 6: Final answer
    x = 13,169.10

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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.