Home / 11,485.41-15,835.33-7,500.21

Finding the Fourth Proportional to 11,485.41, 15,835.33 and 7,500.21

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Solution

The fourth proportional to 11,485.41, 15,835.33 and 7,500.21 is: 10,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.41 : 15,835.33 = 7,500.21 : x
  2. Step 2: Convert to fraction form
    11,485.41/15,835.33 = 7,500.21/x
  3. Step 3: Cross multiply
    11,485.41x = 15,835.33 × 7,500.21
  4. Step 4: Simplify right side
    11,485.41x = 118,768,300.42
  5. Step 5: Solve for x
    x = 118,768,300.42/11,485.41
  6. Step 6: Final answer
    x = 10,340.80

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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.