Home / 13,743.29-18,965.74-7,455.67

Finding the Fourth Proportional to 13,743.29, 18,965.74 and 7,455.67

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Solution

The fourth proportional to 13,743.29, 18,965.74 and 7,455.67 is: 10,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.29 : 18,965.74 = 7,455.67 : x
  2. Step 2: Convert to fraction form
    13,743.29/18,965.74 = 7,455.67/x
  3. Step 3: Cross multiply
    13,743.29x = 18,965.74 × 7,455.67
  4. Step 4: Simplify right side
    13,743.29x = 141,402,203.92
  5. Step 5: Solve for x
    x = 141,402,203.92/13,743.29
  6. Step 6: Final answer
    x = 10,288.82

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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.