Home / 12,651.08-17,455.57-7,342.74

Finding the Fourth Proportional to 12,651.08, 17,455.57 and 7,342.74

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Solution

The fourth proportional to 12,651.08, 17,455.57 and 7,342.74 is: 10,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.08 : 17,455.57 = 7,342.74 : x
  2. Step 2: Convert to fraction form
    12,651.08/17,455.57 = 7,342.74/x
  3. Step 3: Cross multiply
    12,651.08x = 17,455.57 × 7,342.74
  4. Step 4: Simplify right side
    12,651.08x = 128,171,693.70
  5. Step 5: Solve for x
    x = 128,171,693.70/12,651.08
  6. Step 6: Final answer
    x = 10,131.29

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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.