Home / 10,538.28-14,528.99-8,118.38

Finding the Fourth Proportional to 10,538.28, 14,528.99 and 8,118.38

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Solution

The fourth proportional to 10,538.28, 14,528.99 and 8,118.38 is: 11,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.28 : 14,528.99 = 8,118.38 : x
  2. Step 2: Convert to fraction form
    10,538.28/14,528.99 = 8,118.38/x
  3. Step 3: Cross multiply
    10,538.28x = 14,528.99 × 8,118.38
  4. Step 4: Simplify right side
    10,538.28x = 117,951,748.60
  5. Step 5: Solve for x
    x = 117,951,748.60/10,538.28
  6. Step 6: Final answer
    x = 11,192.69

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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.