Home / 12,639.51-17,442.34-6,974.83

Finding the Fourth Proportional to 12,639.51, 17,442.34 and 6,974.83

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Solution

The fourth proportional to 12,639.51, 17,442.34 and 6,974.83 is: 9,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.51 : 17,442.34 = 6,974.83 : x
  2. Step 2: Convert to fraction form
    12,639.51/17,442.34 = 6,974.83/x
  3. Step 3: Cross multiply
    12,639.51x = 17,442.34 × 6,974.83
  4. Step 4: Simplify right side
    12,639.51x = 121,657,262.55
  5. Step 5: Solve for x
    x = 121,657,262.55/12,639.51
  6. Step 6: Final answer
    x = 9,625.16

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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.