Home / 10,425.14-14,386.68-5,709.44

Finding the Fourth Proportional to 10,425.14, 14,386.68 and 5,709.44

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Solution

The fourth proportional to 10,425.14, 14,386.68 and 5,709.44 is: 7,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.14 : 14,386.68 = 5,709.44 : x
  2. Step 2: Convert to fraction form
    10,425.14/14,386.68 = 5,709.44/x
  3. Step 3: Cross multiply
    10,425.14x = 14,386.68 × 5,709.44
  4. Step 4: Simplify right side
    10,425.14x = 82,139,886.26
  5. Step 5: Solve for x
    x = 82,139,886.26/10,425.14
  6. Step 6: Final answer
    x = 7,879.02

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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.