Home / 12,513.85-17,273.43-7,210.78

Finding the Fourth Proportional to 12,513.85, 17,273.43 and 7,210.78

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Solution

The fourth proportional to 12,513.85, 17,273.43 and 7,210.78 is: 9,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.85 : 17,273.43 = 7,210.78 : x
  2. Step 2: Convert to fraction form
    12,513.85/17,273.43 = 7,210.78/x
  3. Step 3: Cross multiply
    12,513.85x = 17,273.43 × 7,210.78
  4. Step 4: Simplify right side
    12,513.85x = 124,554,860.39
  5. Step 5: Solve for x
    x = 124,554,860.39/12,513.85
  6. Step 6: Final answer
    x = 9,953.36

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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.