Home / 9,180.12-12,666.48-5,200.38

Finding the Fourth Proportional to 9,180.12, 12,666.48 and 5,200.38

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Solution

The fourth proportional to 9,180.12, 12,666.48 and 5,200.38 is: 7,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.12 : 12,666.48 = 5,200.38 : x
  2. Step 2: Convert to fraction form
    9,180.12/12,666.48 = 5,200.38/x
  3. Step 3: Cross multiply
    9,180.12x = 12,666.48 × 5,200.38
  4. Step 4: Simplify right side
    9,180.12x = 65,870,509.26
  5. Step 5: Solve for x
    x = 65,870,509.26/9,180.12
  6. Step 6: Final answer
    x = 7,175.34

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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.