Home / 11,325.35-15,628.45-6,289.89

Finding the Fourth Proportional to 11,325.35, 15,628.45 and 6,289.89

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Solution

The fourth proportional to 11,325.35, 15,628.45 and 6,289.89 is: 8,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.35 : 15,628.45 = 6,289.89 : x
  2. Step 2: Convert to fraction form
    11,325.35/15,628.45 = 6,289.89/x
  3. Step 3: Cross multiply
    11,325.35x = 15,628.45 × 6,289.89
  4. Step 4: Simplify right side
    11,325.35x = 98,301,199.92
  5. Step 5: Solve for x
    x = 98,301,199.92/11,325.35
  6. Step 6: Final answer
    x = 8,679.75

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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.