Home / 17,645.10-26,459.55-7,779.30

Finding the Fourth Proportional to 17,645.10, 26,459.55 and 7,779.30

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Solution

The fourth proportional to 17,645.10, 26,459.55 and 7,779.30 is: 11,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,645.10 : 26,459.55 = 7,779.30 : x
  2. Step 2: Convert to fraction form
    17,645.10/26,459.55 = 7,779.30/x
  3. Step 3: Cross multiply
    17,645.10x = 26,459.55 × 7,779.30
  4. Step 4: Simplify right side
    17,645.10x = 205,836,777.32
  5. Step 5: Solve for x
    x = 205,836,777.32/17,645.10
  6. Step 6: Final answer
    x = 11,665.38

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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.