Home / 12,147.58-16,757.93-7,108.71

Finding the Fourth Proportional to 12,147.58, 16,757.93 and 7,108.71

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Solution

The fourth proportional to 12,147.58, 16,757.93 and 7,108.71 is: 9,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.58 : 16,757.93 = 7,108.71 : x
  2. Step 2: Convert to fraction form
    12,147.58/16,757.93 = 7,108.71/x
  3. Step 3: Cross multiply
    12,147.58x = 16,757.93 × 7,108.71
  4. Step 4: Simplify right side
    12,147.58x = 119,127,145.24
  5. Step 5: Solve for x
    x = 119,127,145.24/12,147.58
  6. Step 6: Final answer
    x = 9,806.66

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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.