Home / 12,354.77-18,534.49-4,959.81

Finding the Fourth Proportional to 12,354.77, 18,534.49 and 4,959.81

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Solution

The fourth proportional to 12,354.77, 18,534.49 and 4,959.81 is: 7,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.77 : 18,534.49 = 4,959.81 : x
  2. Step 2: Convert to fraction form
    12,354.77/18,534.49 = 4,959.81/x
  3. Step 3: Cross multiply
    12,354.77x = 18,534.49 × 4,959.81
  4. Step 4: Simplify right side
    12,354.77x = 91,927,536.45
  5. Step 5: Solve for x
    x = 91,927,536.45/12,354.77
  6. Step 6: Final answer
    x = 7,440.65

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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.