Home / 13,748.11-18,972.45-7,460.53

Finding the Fourth Proportional to 13,748.11, 18,972.45 and 7,460.53

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Solution

The fourth proportional to 13,748.11, 18,972.45 and 7,460.53 is: 10,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.11 : 18,972.45 = 7,460.53 : x
  2. Step 2: Convert to fraction form
    13,748.11/18,972.45 = 7,460.53/x
  3. Step 3: Cross multiply
    13,748.11x = 18,972.45 × 7,460.53
  4. Step 4: Simplify right side
    13,748.11x = 141,544,532.40
  5. Step 5: Solve for x
    x = 141,544,532.40/13,748.11
  6. Step 6: Final answer
    x = 10,295.56

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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.