Home / 10,584.90-15,885.45-7,621.92

Finding the Fourth Proportional to 10,584.90, 15,885.45 and 7,621.92

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Solution

The fourth proportional to 10,584.90, 15,885.45 and 7,621.92 is: 11,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,584.90 : 15,885.45 = 7,621.92 : x
  2. Step 2: Convert to fraction form
    10,584.90/15,885.45 = 7,621.92/x
  3. Step 3: Cross multiply
    10,584.90x = 15,885.45 × 7,621.92
  4. Step 4: Simplify right side
    10,584.90x = 121,077,629.06
  5. Step 5: Solve for x
    x = 121,077,629.06/10,584.90
  6. Step 6: Final answer
    x = 11,438.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.