Home / 12,646.87-17,451.44-6,981.26

Finding the Fourth Proportional to 12,646.87, 17,451.44 and 6,981.26

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Solution

The fourth proportional to 12,646.87, 17,451.44 and 6,981.26 is: 9,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.87 : 17,451.44 = 6,981.26 : x
  2. Step 2: Convert to fraction form
    12,646.87/17,451.44 = 6,981.26/x
  3. Step 3: Cross multiply
    12,646.87x = 17,451.44 × 6,981.26
  4. Step 4: Simplify right side
    12,646.87x = 121,832,956.30
  5. Step 5: Solve for x
    x = 121,832,956.30/12,646.87
  6. Step 6: Final answer
    x = 9,633.45

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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.