Home / 10,145.75-14,001.14-6,166.12

Finding the Fourth Proportional to 10,145.75, 14,001.14 and 6,166.12

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Solution

The fourth proportional to 10,145.75, 14,001.14 and 6,166.12 is: 8,509.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.75 : 14,001.14 = 6,166.12 : x
  2. Step 2: Convert to fraction form
    10,145.75/14,001.14 = 6,166.12/x
  3. Step 3: Cross multiply
    10,145.75x = 14,001.14 × 6,166.12
  4. Step 4: Simplify right side
    10,145.75x = 86,332,678.55
  5. Step 5: Solve for x
    x = 86,332,678.55/10,145.75
  6. Step 6: Final answer
    x = 8,509.25

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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.