Home / 12,519.21-17,270.67-7,210.95

Finding the Fourth Proportional to 12,519.21, 17,270.67 and 7,210.95

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Solution

The fourth proportional to 12,519.21, 17,270.67 and 7,210.95 is: 9,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.21 : 17,270.67 = 7,210.95 : x
  2. Step 2: Convert to fraction form
    12,519.21/17,270.67 = 7,210.95/x
  3. Step 3: Cross multiply
    12,519.21x = 17,270.67 × 7,210.95
  4. Step 4: Simplify right side
    12,519.21x = 124,537,937.84
  5. Step 5: Solve for x
    x = 124,537,937.84/12,519.21
  6. Step 6: Final answer
    x = 9,947.75

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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.