Home / 12,589.96-18,887.46-7,051.18

Finding the Fourth Proportional to 12,589.96, 18,887.46 and 7,051.18

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Solution

The fourth proportional to 12,589.96, 18,887.46 and 7,051.18 is: 10,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.96 : 18,887.46 = 7,051.18 : x
  2. Step 2: Convert to fraction form
    12,589.96/18,887.46 = 7,051.18/x
  3. Step 3: Cross multiply
    12,589.96x = 18,887.46 × 7,051.18
  4. Step 4: Simplify right side
    12,589.96x = 133,178,880.20
  5. Step 5: Solve for x
    x = 133,178,880.20/12,589.96
  6. Step 6: Final answer
    x = 10,578.18

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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.