Home / 12,359.88-17,048.07-7,641.36

Finding the Fourth Proportional to 12,359.88, 17,048.07 and 7,641.36

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Solution

The fourth proportional to 12,359.88, 17,048.07 and 7,641.36 is: 10,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.88 : 17,048.07 = 7,641.36 : x
  2. Step 2: Convert to fraction form
    12,359.88/17,048.07 = 7,641.36/x
  3. Step 3: Cross multiply
    12,359.88x = 17,048.07 × 7,641.36
  4. Step 4: Simplify right side
    12,359.88x = 130,270,440.18
  5. Step 5: Solve for x
    x = 130,270,440.18/12,359.88
  6. Step 6: Final answer
    x = 10,539.78

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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.