Home / 13,295.14-18,347.31-7,630.07

Finding the Fourth Proportional to 13,295.14, 18,347.31 and 7,630.07

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Solution

The fourth proportional to 13,295.14, 18,347.31 and 7,630.07 is: 10,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.14 : 18,347.31 = 7,630.07 : x
  2. Step 2: Convert to fraction form
    13,295.14/18,347.31 = 7,630.07/x
  3. Step 3: Cross multiply
    13,295.14x = 18,347.31 × 7,630.07
  4. Step 4: Simplify right side
    13,295.14x = 139,991,167.88
  5. Step 5: Solve for x
    x = 139,991,167.88/13,295.14
  6. Step 6: Final answer
    x = 10,529.50

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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.