Home / 12,445.94-17,175.48-7,140.62

Finding the Fourth Proportional to 12,445.94, 17,175.48 and 7,140.62

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Solution

The fourth proportional to 12,445.94, 17,175.48 and 7,140.62 is: 9,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.94 : 17,175.48 = 7,140.62 : x
  2. Step 2: Convert to fraction form
    12,445.94/17,175.48 = 7,140.62/x
  3. Step 3: Cross multiply
    12,445.94x = 17,175.48 × 7,140.62
  4. Step 4: Simplify right side
    12,445.94x = 122,643,576.00
  5. Step 5: Solve for x
    x = 122,643,576.00/12,445.94
  6. Step 6: Final answer
    x = 9,854.10

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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.