Home / 11,460.10-17,190.13-3,140.19

Finding the Fourth Proportional to 11,460.10, 17,190.13 and 3,140.19

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Solution

The fourth proportional to 11,460.10, 17,190.13 and 3,140.19 is: 4,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,460.10 : 17,190.13 = 3,140.19 : x
  2. Step 2: Convert to fraction form
    11,460.10/17,190.13 = 3,140.19/x
  3. Step 3: Cross multiply
    11,460.10x = 17,190.13 × 3,140.19
  4. Step 4: Simplify right side
    11,460.10x = 53,980,274.32
  5. Step 5: Solve for x
    x = 53,980,274.32/11,460.10
  6. Step 6: Final answer
    x = 4,710.28

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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.