Home / 13,358.76-18,433.56-7,389.60

Finding the Fourth Proportional to 13,358.76, 18,433.56 and 7,389.60

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Solution

The fourth proportional to 13,358.76, 18,433.56 and 7,389.60 is: 10,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.76 : 18,433.56 = 7,389.60 : x
  2. Step 2: Convert to fraction form
    13,358.76/18,433.56 = 7,389.60/x
  3. Step 3: Cross multiply
    13,358.76x = 18,433.56 × 7,389.60
  4. Step 4: Simplify right side
    13,358.76x = 136,216,634.98
  5. Step 5: Solve for x
    x = 136,216,634.98/13,358.76
  6. Step 6: Final answer
    x = 10,196.80

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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.