Home / 26,419.60-39,634.57-9,779.77

Finding the Fourth Proportional to 26,419.60, 39,634.57 and 9,779.77

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Solution

The fourth proportional to 26,419.60, 39,634.57 and 9,779.77 is: 14,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.60 : 39,634.57 = 9,779.77 : x
  2. Step 2: Convert to fraction form
    26,419.60/39,634.57 = 9,779.77/x
  3. Step 3: Cross multiply
    26,419.60x = 39,634.57 × 9,779.77
  4. Step 4: Simplify right side
    26,419.60x = 387,616,978.65
  5. Step 5: Solve for x
    x = 387,616,978.65/26,419.60
  6. Step 6: Final answer
    x = 14,671.57

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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.