Home / 11,174.36-15,421.03-6,139.15

Finding the Fourth Proportional to 11,174.36, 15,421.03 and 6,139.15

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Solution

The fourth proportional to 11,174.36, 15,421.03 and 6,139.15 is: 8,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.36 : 15,421.03 = 6,139.15 : x
  2. Step 2: Convert to fraction form
    11,174.36/15,421.03 = 6,139.15/x
  3. Step 3: Cross multiply
    11,174.36x = 15,421.03 × 6,139.15
  4. Step 4: Simplify right side
    11,174.36x = 94,671,962.42
  5. Step 5: Solve for x
    x = 94,671,962.42/11,174.36
  6. Step 6: Final answer
    x = 8,472.25

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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.