Home / 13,775.67-20,666.75-5,010.66

Finding the Fourth Proportional to 13,775.67, 20,666.75 and 5,010.66

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Solution

The fourth proportional to 13,775.67, 20,666.75 and 5,010.66 is: 7,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.67 : 20,666.75 = 5,010.66 : x
  2. Step 2: Convert to fraction form
    13,775.67/20,666.75 = 5,010.66/x
  3. Step 3: Cross multiply
    13,775.67x = 20,666.75 × 5,010.66
  4. Step 4: Simplify right side
    13,775.67x = 103,554,032.50
  5. Step 5: Solve for x
    x = 103,554,032.50/13,775.67
  6. Step 6: Final answer
    x = 7,517.17

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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.