Home / 19,406.08-26,779.20-11,448.64

Finding the Fourth Proportional to 19,406.08, 26,779.20 and 11,448.64

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Solution

The fourth proportional to 19,406.08, 26,779.20 and 11,448.64 is: 15,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.08 : 26,779.20 = 11,448.64 : x
  2. Step 2: Convert to fraction form
    19,406.08/26,779.20 = 11,448.64/x
  3. Step 3: Cross multiply
    19,406.08x = 26,779.20 × 11,448.64
  4. Step 4: Simplify right side
    19,406.08x = 306,585,420.29
  5. Step 5: Solve for x
    x = 306,585,420.29/19,406.08
  6. Step 6: Final answer
    x = 15,798.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.