Home / 12,148.13-16,765.61-7,112.04

Finding the Fourth Proportional to 12,148.13, 16,765.61 and 7,112.04

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Solution

The fourth proportional to 12,148.13, 16,765.61 and 7,112.04 is: 9,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.13 : 16,765.61 = 7,112.04 : x
  2. Step 2: Convert to fraction form
    12,148.13/16,765.61 = 7,112.04/x
  3. Step 3: Cross multiply
    12,148.13x = 16,765.61 × 7,112.04
  4. Step 4: Simplify right side
    12,148.13x = 119,237,653.38
  5. Step 5: Solve for x
    x = 119,237,653.38/12,148.13
  6. Step 6: Final answer
    x = 9,815.31

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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.