Home / 17,146.87-23,670.77-12,899.55

Finding the Fourth Proportional to 17,146.87, 23,670.77 and 12,899.55

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Solution

The fourth proportional to 17,146.87, 23,670.77 and 12,899.55 is: 17,807.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,146.87 : 23,670.77 = 12,899.55 : x
  2. Step 2: Convert to fraction form
    17,146.87/23,670.77 = 12,899.55/x
  3. Step 3: Cross multiply
    17,146.87x = 23,670.77 × 12,899.55
  4. Step 4: Simplify right side
    17,146.87x = 305,342,281.15
  5. Step 5: Solve for x
    x = 305,342,281.15/17,146.87
  6. Step 6: Final answer
    x = 17,807.46

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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.