Home / 15,438.94-23,189.40-9,211.10

Finding the Fourth Proportional to 15,438.94, 23,189.40 and 9,211.10

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Solution

The fourth proportional to 15,438.94, 23,189.40 and 9,211.10 is: 13,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.94 : 23,189.40 = 9,211.10 : x
  2. Step 2: Convert to fraction form
    15,438.94/23,189.40 = 9,211.10/x
  3. Step 3: Cross multiply
    15,438.94x = 23,189.40 × 9,211.10
  4. Step 4: Simplify right side
    15,438.94x = 213,599,766.39
  5. Step 5: Solve for x
    x = 213,599,766.39/15,438.94
  6. Step 6: Final answer
    x = 13,835.13

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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.