Home / 9,180.12-12,668.46-4,988.28

Finding the Fourth Proportional to 9,180.12, 12,668.46 and 4,988.28

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Solution

The fourth proportional to 9,180.12, 12,668.46 and 4,988.28 is: 6,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.12 : 12,668.46 = 4,988.28 : x
  2. Step 2: Convert to fraction form
    9,180.12/12,668.46 = 4,988.28/x
  3. Step 3: Cross multiply
    9,180.12x = 12,668.46 × 4,988.28
  4. Step 4: Simplify right side
    9,180.12x = 63,193,825.65
  5. Step 5: Solve for x
    x = 63,193,825.65/9,180.12
  6. Step 6: Final answer
    x = 6,883.77

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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.