Home / 13,637.19-20,445.93-5,310.18

Finding the Fourth Proportional to 13,637.19, 20,445.93 and 5,310.18

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Solution

The fourth proportional to 13,637.19, 20,445.93 and 5,310.18 is: 7,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.19 : 20,445.93 = 5,310.18 : x
  2. Step 2: Convert to fraction form
    13,637.19/20,445.93 = 5,310.18/x
  3. Step 3: Cross multiply
    13,637.19x = 20,445.93 × 5,310.18
  4. Step 4: Simplify right side
    13,637.19x = 108,571,568.57
  5. Step 5: Solve for x
    x = 108,571,568.57/13,637.19
  6. Step 6: Final answer
    x = 7,961.43

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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.