Home / 13,655.79-18,850.80-9,182.13

Finding the Fourth Proportional to 13,655.79, 18,850.80 and 9,182.13

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Solution

The fourth proportional to 13,655.79, 18,850.80 and 9,182.13 is: 12,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.79 : 18,850.80 = 9,182.13 : x
  2. Step 2: Convert to fraction form
    13,655.79/18,850.80 = 9,182.13/x
  3. Step 3: Cross multiply
    13,655.79x = 18,850.80 × 9,182.13
  4. Step 4: Simplify right side
    13,655.79x = 173,090,496.20
  5. Step 5: Solve for x
    x = 173,090,496.20/13,655.79
  6. Step 6: Final answer
    x = 12,675.25

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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.