Home / 13,507.56-18,636.35-10,675.40

Finding the Fourth Proportional to 13,507.56, 18,636.35 and 10,675.40

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Solution

The fourth proportional to 13,507.56, 18,636.35 and 10,675.40 is: 14,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.56 : 18,636.35 = 10,675.40 : x
  2. Step 2: Convert to fraction form
    13,507.56/18,636.35 = 10,675.40/x
  3. Step 3: Cross multiply
    13,507.56x = 18,636.35 × 10,675.40
  4. Step 4: Simplify right side
    13,507.56x = 198,950,344.23
  5. Step 5: Solve for x
    x = 198,950,344.23/13,507.56
  6. Step 6: Final answer
    x = 14,728.81

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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.