Home / 8,720.36-13,080.51-2,395.25

Finding the Fourth Proportional to 8,720.36, 13,080.51 and 2,395.25

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Solution

The fourth proportional to 8,720.36, 13,080.51 and 2,395.25 is: 3,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.36 : 13,080.51 = 2,395.25 : x
  2. Step 2: Convert to fraction form
    8,720.36/13,080.51 = 2,395.25/x
  3. Step 3: Cross multiply
    8,720.36x = 13,080.51 × 2,395.25
  4. Step 4: Simplify right side
    8,720.36x = 31,331,032.16
  5. Step 5: Solve for x
    x = 31,331,032.16/8,720.36
  6. Step 6: Final answer
    x = 3,592.86

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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.