Home / 13,748.13-18,972.50-7,460.51

Finding the Fourth Proportional to 13,748.13, 18,972.50 and 7,460.51

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Solution

The fourth proportional to 13,748.13, 18,972.50 and 7,460.51 is: 10,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.13 : 18,972.50 = 7,460.51 : x
  2. Step 2: Convert to fraction form
    13,748.13/18,972.50 = 7,460.51/x
  3. Step 3: Cross multiply
    13,748.13x = 18,972.50 × 7,460.51
  4. Step 4: Simplify right side
    13,748.13x = 141,544,393.81
  5. Step 5: Solve for x
    x = 141,544,393.81/13,748.13
  6. Step 6: Final answer
    x = 10,295.54

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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.