Home / 11,434.08-15,779.36-6,398.24

Finding the Fourth Proportional to 11,434.08, 15,779.36 and 6,398.24

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Solution

The fourth proportional to 11,434.08, 15,779.36 and 6,398.24 is: 8,829.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.08 : 15,779.36 = 6,398.24 : x
  2. Step 2: Convert to fraction form
    11,434.08/15,779.36 = 6,398.24/x
  3. Step 3: Cross multiply
    11,434.08x = 15,779.36 × 6,398.24
  4. Step 4: Simplify right side
    11,434.08x = 100,960,132.33
  5. Step 5: Solve for x
    x = 100,960,132.33/11,434.08
  6. Step 6: Final answer
    x = 8,829.76

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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.