Home / 26,419.47-39,634.38-9,779.64

Finding the Fourth Proportional to 26,419.47, 39,634.38 and 9,779.64

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Solution

The fourth proportional to 26,419.47, 39,634.38 and 9,779.64 is: 14,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.47 : 39,634.38 = 9,779.64 : x
  2. Step 2: Convert to fraction form
    26,419.47/39,634.38 = 9,779.64/x
  3. Step 3: Cross multiply
    26,419.47x = 39,634.38 × 9,779.64
  4. Step 4: Simplify right side
    26,419.47x = 387,609,968.02
  5. Step 5: Solve for x
    x = 387,609,968.02/26,419.47
  6. Step 6: Final answer
    x = 14,671.38

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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.