Home / 13,655.86-18,847.49-13,032.57

Finding the Fourth Proportional to 13,655.86, 18,847.49 and 13,032.57

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Solution

The fourth proportional to 13,655.86, 18,847.49 and 13,032.57 is: 17,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.86 : 18,847.49 = 13,032.57 : x
  2. Step 2: Convert to fraction form
    13,655.86/18,847.49 = 13,032.57/x
  3. Step 3: Cross multiply
    13,655.86x = 18,847.49 × 13,032.57
  4. Step 4: Simplify right side
    13,655.86x = 245,631,232.75
  5. Step 5: Solve for x
    x = 245,631,232.75/13,655.86
  6. Step 6: Final answer
    x = 17,987.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.