Home / 10,867.11-14,995.58-8,634.39

Finding the Fourth Proportional to 10,867.11, 14,995.58 and 8,634.39

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Solution

The fourth proportional to 10,867.11, 14,995.58 and 8,634.39 is: 11,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.11 : 14,995.58 = 8,634.39 : x
  2. Step 2: Convert to fraction form
    10,867.11/14,995.58 = 8,634.39/x
  3. Step 3: Cross multiply
    10,867.11x = 14,995.58 × 8,634.39
  4. Step 4: Simplify right side
    10,867.11x = 129,477,642.82
  5. Step 5: Solve for x
    x = 129,477,642.82/10,867.11
  6. Step 6: Final answer
    x = 11,914.63

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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.