Home / 26,419.72-39,634.76-9,779.90

Finding the Fourth Proportional to 26,419.72, 39,634.76 and 9,779.90

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Solution

The fourth proportional to 26,419.72, 39,634.76 and 9,779.90 is: 14,671.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.72 : 39,634.76 = 9,779.90 : x
  2. Step 2: Convert to fraction form
    26,419.72/39,634.76 = 9,779.90/x
  3. Step 3: Cross multiply
    26,419.72x = 39,634.76 × 9,779.90
  4. Step 4: Simplify right side
    26,419.72x = 387,623,989.32
  5. Step 5: Solve for x
    x = 387,623,989.32/26,419.72
  6. Step 6: Final answer
    x = 14,671.77

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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.