Home / 13,666.67-20,500.05-4,307.57

Finding the Fourth Proportional to 13,666.67, 20,500.05 and 4,307.57

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Solution

The fourth proportional to 13,666.67, 20,500.05 and 4,307.57 is: 6,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.67 : 20,500.05 = 4,307.57 : x
  2. Step 2: Convert to fraction form
    13,666.67/20,500.05 = 4,307.57/x
  3. Step 3: Cross multiply
    13,666.67x = 20,500.05 × 4,307.57
  4. Step 4: Simplify right side
    13,666.67x = 88,305,400.38
  5. Step 5: Solve for x
    x = 88,305,400.38/13,666.67
  6. Step 6: Final answer
    x = 6,461.37

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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.