Home / 10,678.14-14,733.18-9,259.56

Finding the Fourth Proportional to 10,678.14, 14,733.18 and 9,259.56

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Solution

The fourth proportional to 10,678.14, 14,733.18 and 9,259.56 is: 12,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.14 : 14,733.18 = 9,259.56 : x
  2. Step 2: Convert to fraction form
    10,678.14/14,733.18 = 9,259.56/x
  3. Step 3: Cross multiply
    10,678.14x = 14,733.18 × 9,259.56
  4. Step 4: Simplify right side
    10,678.14x = 136,422,764.20
  5. Step 5: Solve for x
    x = 136,422,764.20/10,678.14
  6. Step 6: Final answer
    x = 12,775.89

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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.