Home / 10,400.63-15,602.45-3,005.15

Finding the Fourth Proportional to 10,400.63, 15,602.45 and 3,005.15

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Solution

The fourth proportional to 10,400.63, 15,602.45 and 3,005.15 is: 4,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.63 : 15,602.45 = 3,005.15 : x
  2. Step 2: Convert to fraction form
    10,400.63/15,602.45 = 3,005.15/x
  3. Step 3: Cross multiply
    10,400.63x = 15,602.45 × 3,005.15
  4. Step 4: Simplify right side
    10,400.63x = 46,887,609.58
  5. Step 5: Solve for x
    x = 46,887,609.58/10,400.63
  6. Step 6: Final answer
    x = 4,508.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.