Home / 16,779.42-23,155.12-9,225.78

Finding the Fourth Proportional to 16,779.42, 23,155.12 and 9,225.78

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Solution

The fourth proportional to 16,779.42, 23,155.12 and 9,225.78 is: 12,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.42 : 23,155.12 = 9,225.78 : x
  2. Step 2: Convert to fraction form
    16,779.42/23,155.12 = 9,225.78/x
  3. Step 3: Cross multiply
    16,779.42x = 23,155.12 × 9,225.78
  4. Step 4: Simplify right side
    16,779.42x = 213,624,042.99
  5. Step 5: Solve for x
    x = 213,624,042.99/16,779.42
  6. Step 6: Final answer
    x = 12,731.31

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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.