Home / 10,186.12-14,055.18-5,709.43

Finding the Fourth Proportional to 10,186.12, 14,055.18 and 5,709.43

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Solution

The fourth proportional to 10,186.12, 14,055.18 and 5,709.43 is: 7,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.12 : 14,055.18 = 5,709.43 : x
  2. Step 2: Convert to fraction form
    10,186.12/14,055.18 = 5,709.43/x
  3. Step 3: Cross multiply
    10,186.12x = 14,055.18 × 5,709.43
  4. Step 4: Simplify right side
    10,186.12x = 80,247,066.35
  5. Step 5: Solve for x
    x = 80,247,066.35/10,186.12
  6. Step 6: Final answer
    x = 7,878.08

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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.