Home / 12,170.18-18,253.58-4,779.83

Finding the Fourth Proportional to 12,170.18, 18,253.58 and 4,779.83

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Solution

The fourth proportional to 12,170.18, 18,253.58 and 4,779.83 is: 7,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.18 : 18,253.58 = 4,779.83 : x
  2. Step 2: Convert to fraction form
    12,170.18/18,253.58 = 4,779.83/x
  3. Step 3: Cross multiply
    12,170.18x = 18,253.58 × 4,779.83
  4. Step 4: Simplify right side
    12,170.18x = 87,248,894.12
  5. Step 5: Solve for x
    x = 87,248,894.12/12,170.18
  6. Step 6: Final answer
    x = 7,169.07

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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.