Home / 11,176.38-15,421.59-6,459.75

Finding the Fourth Proportional to 11,176.38, 15,421.59 and 6,459.75

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Solution

The fourth proportional to 11,176.38, 15,421.59 and 6,459.75 is: 8,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.38 : 15,421.59 = 6,459.75 : x
  2. Step 2: Convert to fraction form
    11,176.38/15,421.59 = 6,459.75/x
  3. Step 3: Cross multiply
    11,176.38x = 15,421.59 × 6,459.75
  4. Step 4: Simplify right side
    11,176.38x = 99,619,616.00
  5. Step 5: Solve for x
    x = 99,619,616.00/11,176.38
  6. Step 6: Final answer
    x = 8,913.41

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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.