Home / 18,628.75-25,700.38-10,666.69

Finding the Fourth Proportional to 18,628.75, 25,700.38 and 10,666.69

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Solution

The fourth proportional to 18,628.75, 25,700.38 and 10,666.69 is: 14,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.75 : 25,700.38 = 10,666.69 : x
  2. Step 2: Convert to fraction form
    18,628.75/25,700.38 = 10,666.69/x
  3. Step 3: Cross multiply
    18,628.75x = 25,700.38 × 10,666.69
  4. Step 4: Simplify right side
    18,628.75x = 274,137,986.34
  5. Step 5: Solve for x
    x = 274,137,986.34/18,628.75
  6. Step 6: Final answer
    x = 14,715.86

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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.