Home / 12,306.14-18,457.62-3,985.32

Finding the Fourth Proportional to 12,306.14, 18,457.62 and 3,985.32

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Solution

The fourth proportional to 12,306.14, 18,457.62 and 3,985.32 is: 5,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.14 : 18,457.62 = 3,985.32 : x
  2. Step 2: Convert to fraction form
    12,306.14/18,457.62 = 3,985.32/x
  3. Step 3: Cross multiply
    12,306.14x = 18,457.62 × 3,985.32
  4. Step 4: Simplify right side
    12,306.14x = 73,559,522.14
  5. Step 5: Solve for x
    x = 73,559,522.14/12,306.14
  6. Step 6: Final answer
    x = 5,977.47

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1.5x scale

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.