Home / 12,102.05-16,693.58-7,618.02

Finding the Fourth Proportional to 12,102.05, 16,693.58 and 7,618.02

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Solution

The fourth proportional to 12,102.05, 16,693.58 and 7,618.02 is: 10,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.05 : 16,693.58 = 7,618.02 : x
  2. Step 2: Convert to fraction form
    12,102.05/16,693.58 = 7,618.02/x
  3. Step 3: Cross multiply
    12,102.05x = 16,693.58 × 7,618.02
  4. Step 4: Simplify right side
    12,102.05x = 127,172,045.36
  5. Step 5: Solve for x
    x = 127,172,045.36/12,102.05
  6. Step 6: Final answer
    x = 10,508.30

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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.