Home / 15,438.81-23,155.41-4,909.95

Finding the Fourth Proportional to 15,438.81, 23,155.41 and 4,909.95

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Solution

The fourth proportional to 15,438.81, 23,155.41 and 4,909.95 is: 7,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.81 : 23,155.41 = 4,909.95 : x
  2. Step 2: Convert to fraction form
    15,438.81/23,155.41 = 4,909.95/x
  3. Step 3: Cross multiply
    15,438.81x = 23,155.41 × 4,909.95
  4. Step 4: Simplify right side
    15,438.81x = 113,691,905.33
  5. Step 5: Solve for x
    x = 113,691,905.33/15,438.81
  6. Step 6: Final answer
    x = 7,364.03

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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.