Home / 13,686.23-18,892.11-10,655.34

Finding the Fourth Proportional to 13,686.23, 18,892.11 and 10,655.34

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Solution

The fourth proportional to 13,686.23, 18,892.11 and 10,655.34 is: 14,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.23 : 18,892.11 = 10,655.34 : x
  2. Step 2: Convert to fraction form
    13,686.23/18,892.11 = 10,655.34/x
  3. Step 3: Cross multiply
    13,686.23x = 18,892.11 × 10,655.34
  4. Step 4: Simplify right side
    13,686.23x = 201,301,930.75
  5. Step 5: Solve for x
    x = 201,301,930.75/13,686.23
  6. Step 6: Final answer
    x = 14,708.36

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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.