Home / 12,824.49-17,698.20-7,159.35

Finding the Fourth Proportional to 12,824.49, 17,698.20 and 7,159.35

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Solution

The fourth proportional to 12,824.49, 17,698.20 and 7,159.35 is: 9,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,824.49 : 17,698.20 = 7,159.35 : x
  2. Step 2: Convert to fraction form
    12,824.49/17,698.20 = 7,159.35/x
  3. Step 3: Cross multiply
    12,824.49x = 17,698.20 × 7,159.35
  4. Step 4: Simplify right side
    12,824.49x = 126,707,608.17
  5. Step 5: Solve for x
    x = 126,707,608.17/12,824.49
  6. Step 6: Final answer
    x = 9,880.13

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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.