Home / 13,460.10-20,192.46-5,140.86

Finding the Fourth Proportional to 13,460.10, 20,192.46 and 5,140.86

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Solution

The fourth proportional to 13,460.10, 20,192.46 and 5,140.86 is: 7,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.10 : 20,192.46 = 5,140.86 : x
  2. Step 2: Convert to fraction form
    13,460.10/20,192.46 = 5,140.86/x
  3. Step 3: Cross multiply
    13,460.10x = 20,192.46 × 5,140.86
  4. Step 4: Simplify right side
    13,460.10x = 103,806,609.92
  5. Step 5: Solve for x
    x = 103,806,609.92/13,460.10
  6. Step 6: Final answer
    x = 7,712.17

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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.