Home / 7,779.39-11,667.80-3,337.77

Finding the Fourth Proportional to 7,779.39, 11,667.80 and 3,337.77

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Solution

The fourth proportional to 7,779.39, 11,667.80 and 3,337.77 is: 5,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.39 : 11,667.80 = 3,337.77 : x
  2. Step 2: Convert to fraction form
    7,779.39/11,667.80 = 3,337.77/x
  3. Step 3: Cross multiply
    7,779.39x = 11,667.80 × 3,337.77
  4. Step 4: Simplify right side
    7,779.39x = 38,944,416.12
  5. Step 5: Solve for x
    x = 38,944,416.12/7,779.39
  6. Step 6: Final answer
    x = 5,006.10

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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.