Home / 11,434.16-15,779.75-6,398.08

Finding the Fourth Proportional to 11,434.16, 15,779.75 and 6,398.08

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Solution

The fourth proportional to 11,434.16, 15,779.75 and 6,398.08 is: 8,829.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.16 : 15,779.75 = 6,398.08 : x
  2. Step 2: Convert to fraction form
    11,434.16/15,779.75 = 6,398.08/x
  3. Step 3: Cross multiply
    11,434.16x = 15,779.75 × 6,398.08
  4. Step 4: Simplify right side
    11,434.16x = 100,960,102.88
  5. Step 5: Solve for x
    x = 100,960,102.88/11,434.16
  6. Step 6: Final answer
    x = 8,829.69

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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.