Home / 12,675.52-17,473.92-8,690.32

Finding the Fourth Proportional to 12,675.52, 17,473.92 and 8,690.32

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Solution

The fourth proportional to 12,675.52, 17,473.92 and 8,690.32 is: 11,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.52 : 17,473.92 = 8,690.32 : x
  2. Step 2: Convert to fraction form
    12,675.52/17,473.92 = 8,690.32/x
  3. Step 3: Cross multiply
    12,675.52x = 17,473.92 × 8,690.32
  4. Step 4: Simplify right side
    12,675.52x = 151,853,956.45
  5. Step 5: Solve for x
    x = 151,853,956.45/12,675.52
  6. Step 6: Final answer
    x = 11,980.10

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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.