Home / 12,665.04-18,979.80-5,994.48

Finding the Fourth Proportional to 12,665.04, 18,979.80 and 5,994.48

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Solution

The fourth proportional to 12,665.04, 18,979.80 and 5,994.48 is: 8,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.04 : 18,979.80 = 5,994.48 : x
  2. Step 2: Convert to fraction form
    12,665.04/18,979.80 = 5,994.48/x
  3. Step 3: Cross multiply
    12,665.04x = 18,979.80 × 5,994.48
  4. Step 4: Simplify right side
    12,665.04x = 113,774,031.50
  5. Step 5: Solve for x
    x = 113,774,031.50/12,665.04
  6. Step 6: Final answer
    x = 8,983.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.