Home / 18,715.15-28,059.72-7,025.23

Finding the Fourth Proportional to 18,715.15, 28,059.72 and 7,025.23

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Solution

The fourth proportional to 18,715.15, 28,059.72 and 7,025.23 is: 10,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.15 : 28,059.72 = 7,025.23 : x
  2. Step 2: Convert to fraction form
    18,715.15/28,059.72 = 7,025.23/x
  3. Step 3: Cross multiply
    18,715.15x = 28,059.72 × 7,025.23
  4. Step 4: Simplify right side
    18,715.15x = 197,125,986.74
  5. Step 5: Solve for x
    x = 197,125,986.74/18,715.15
  6. Step 6: Final answer
    x = 10,532.96

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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.