Home / 15,955.30-23,917.50-8,938.72

Finding the Fourth Proportional to 15,955.30, 23,917.50 and 8,938.72

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Solution

The fourth proportional to 15,955.30, 23,917.50 and 8,938.72 is: 13,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.30 : 23,917.50 = 8,938.72 : x
  2. Step 2: Convert to fraction form
    15,955.30/23,917.50 = 8,938.72/x
  3. Step 3: Cross multiply
    15,955.30x = 23,917.50 × 8,938.72
  4. Step 4: Simplify right side
    15,955.30x = 213,791,835.60
  5. Step 5: Solve for x
    x = 213,791,835.60/15,955.30
  6. Step 6: Final answer
    x = 13,399.42

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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.