Home / 11,689.38-16,147.62-10,430.01

Finding the Fourth Proportional to 11,689.38, 16,147.62 and 10,430.01

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Solution

The fourth proportional to 11,689.38, 16,147.62 and 10,430.01 is: 14,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.38 : 16,147.62 = 10,430.01 : x
  2. Step 2: Convert to fraction form
    11,689.38/16,147.62 = 10,430.01/x
  3. Step 3: Cross multiply
    11,689.38x = 16,147.62 × 10,430.01
  4. Step 4: Simplify right side
    11,689.38x = 168,419,838.08
  5. Step 5: Solve for x
    x = 168,419,838.08/11,689.38
  6. Step 6: Final answer
    x = 14,407.94

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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.