Home / 13,748.21-18,972.55-7,460.59

Finding the Fourth Proportional to 13,748.21, 18,972.55 and 7,460.59

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Solution

The fourth proportional to 13,748.21, 18,972.55 and 7,460.59 is: 10,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.21 : 18,972.55 = 7,460.59 : x
  2. Step 2: Convert to fraction form
    13,748.21/18,972.55 = 7,460.59/x
  3. Step 3: Cross multiply
    13,748.21x = 18,972.55 × 7,460.59
  4. Step 4: Simplify right side
    13,748.21x = 141,546,284.64
  5. Step 5: Solve for x
    x = 141,546,284.64/13,748.21
  6. Step 6: Final answer
    x = 10,295.62

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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.