Home / 17,812.10-26,720.55-6,128.90

Finding the Fourth Proportional to 17,812.10, 26,720.55 and 6,128.90

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Solution

The fourth proportional to 17,812.10, 26,720.55 and 6,128.90 is: 9,194.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.10 : 26,720.55 = 6,128.90 : x
  2. Step 2: Convert to fraction form
    17,812.10/26,720.55 = 6,128.90/x
  3. Step 3: Cross multiply
    17,812.10x = 26,720.55 × 6,128.90
  4. Step 4: Simplify right side
    17,812.10x = 163,767,578.90
  5. Step 5: Solve for x
    x = 163,767,578.90/17,812.10
  6. Step 6: Final answer
    x = 9,194.18

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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.