Home / 13,271.66-18,315.71-7,304.65

Finding the Fourth Proportional to 13,271.66, 18,315.71 and 7,304.65

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Solution

The fourth proportional to 13,271.66, 18,315.71 and 7,304.65 is: 10,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.66 : 18,315.71 = 7,304.65 : x
  2. Step 2: Convert to fraction form
    13,271.66/18,315.71 = 7,304.65/x
  3. Step 3: Cross multiply
    13,271.66x = 18,315.71 × 7,304.65
  4. Step 4: Simplify right side
    13,271.66x = 133,789,796.13
  5. Step 5: Solve for x
    x = 133,789,796.13/13,271.66
  6. Step 6: Final answer
    x = 10,080.86

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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.