Home / 13,303.48-18,358.72-7,335.12

Finding the Fourth Proportional to 13,303.48, 18,358.72 and 7,335.12

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Solution

The fourth proportional to 13,303.48, 18,358.72 and 7,335.12 is: 10,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.48 : 18,358.72 = 7,335.12 : x
  2. Step 2: Convert to fraction form
    13,303.48/18,358.72 = 7,335.12/x
  3. Step 3: Cross multiply
    13,303.48x = 18,358.72 × 7,335.12
  4. Step 4: Simplify right side
    13,303.48x = 134,663,414.25
  5. Step 5: Solve for x
    x = 134,663,414.25/13,303.48
  6. Step 6: Final answer
    x = 10,122.42

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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.