Home / 13,000.07-19,501.34-3,640.11

Finding the Fourth Proportional to 13,000.07, 19,501.34 and 3,640.11

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Solution

The fourth proportional to 13,000.07, 19,501.34 and 3,640.11 is: 5,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.07 : 19,501.34 = 3,640.11 : x
  2. Step 2: Convert to fraction form
    13,000.07/19,501.34 = 3,640.11/x
  3. Step 3: Cross multiply
    13,000.07x = 19,501.34 × 3,640.11
  4. Step 4: Simplify right side
    13,000.07x = 70,987,004.55
  5. Step 5: Solve for x
    x = 70,987,004.55/13,000.07
  6. Step 6: Final answer
    x = 5,460.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.