Home / 13,531.07-20,298.63-4,170.31

Finding the Fourth Proportional to 13,531.07, 20,298.63 and 4,170.31

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Solution

The fourth proportional to 13,531.07, 20,298.63 and 4,170.31 is: 6,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.07 : 20,298.63 = 4,170.31 : x
  2. Step 2: Convert to fraction form
    13,531.07/20,298.63 = 4,170.31/x
  3. Step 3: Cross multiply
    13,531.07x = 20,298.63 × 4,170.31
  4. Step 4: Simplify right side
    13,531.07x = 84,651,579.68
  5. Step 5: Solve for x
    x = 84,651,579.68/13,531.07
  6. Step 6: Final answer
    x = 6,256.09

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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.