Home / 14,694.49-20,278.43-7,980.04

Finding the Fourth Proportional to 14,694.49, 20,278.43 and 7,980.04

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Solution

The fourth proportional to 14,694.49, 20,278.43 and 7,980.04 is: 11,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.49 : 20,278.43 = 7,980.04 : x
  2. Step 2: Convert to fraction form
    14,694.49/20,278.43 = 7,980.04/x
  3. Step 3: Cross multiply
    14,694.49x = 20,278.43 × 7,980.04
  4. Step 4: Simplify right side
    14,694.49x = 161,822,642.64
  5. Step 5: Solve for x
    x = 161,822,642.64/14,694.49
  6. Step 6: Final answer
    x = 11,012.47

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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.