Home / 13,791.06-19,031.76-7,503.57

Finding the Fourth Proportional to 13,791.06, 19,031.76 and 7,503.57

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Solution

The fourth proportional to 13,791.06, 19,031.76 and 7,503.57 is: 10,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.06 : 19,031.76 = 7,503.57 : x
  2. Step 2: Convert to fraction form
    13,791.06/19,031.76 = 7,503.57/x
  3. Step 3: Cross multiply
    13,791.06x = 19,031.76 × 7,503.57
  4. Step 4: Simplify right side
    13,791.06x = 142,806,143.38
  5. Step 5: Solve for x
    x = 142,806,143.38/13,791.06
  6. Step 6: Final answer
    x = 10,354.98

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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.