Home / 12,740.84-17,581.77-7,075.95

Finding the Fourth Proportional to 12,740.84, 17,581.77 and 7,075.95

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Solution

The fourth proportional to 12,740.84, 17,581.77 and 7,075.95 is: 9,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.84 : 17,581.77 = 7,075.95 : x
  2. Step 2: Convert to fraction form
    12,740.84/17,581.77 = 7,075.95/x
  3. Step 3: Cross multiply
    12,740.84x = 17,581.77 × 7,075.95
  4. Step 4: Simplify right side
    12,740.84x = 124,407,725.43
  5. Step 5: Solve for x
    x = 124,407,725.43/12,740.84
  6. Step 6: Final answer
    x = 9,764.49

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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.