Home / 12,551.79-18,815.67-4,652.19

Finding the Fourth Proportional to 12,551.79, 18,815.67 and 4,652.19

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Solution

The fourth proportional to 12,551.79, 18,815.67 and 4,652.19 is: 6,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.79 : 18,815.67 = 4,652.19 : x
  2. Step 2: Convert to fraction form
    12,551.79/18,815.67 = 4,652.19/x
  3. Step 3: Cross multiply
    12,551.79x = 18,815.67 × 4,652.19
  4. Step 4: Simplify right side
    12,551.79x = 87,533,977.74
  5. Step 5: Solve for x
    x = 87,533,977.74/12,551.79
  6. Step 6: Final answer
    x = 6,973.82

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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.