Home / 12,679.08-17,495.01-7,374.12

Finding the Fourth Proportional to 12,679.08, 17,495.01 and 7,374.12

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Solution

The fourth proportional to 12,679.08, 17,495.01 and 7,374.12 is: 10,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.08 : 17,495.01 = 7,374.12 : x
  2. Step 2: Convert to fraction form
    12,679.08/17,495.01 = 7,374.12/x
  3. Step 3: Cross multiply
    12,679.08x = 17,495.01 × 7,374.12
  4. Step 4: Simplify right side
    12,679.08x = 129,010,303.14
  5. Step 5: Solve for x
    x = 129,010,303.14/12,679.08
  6. Step 6: Final answer
    x = 10,175.05

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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.