Home / 12,518.28-18,779.65-4,201.00

Finding the Fourth Proportional to 12,518.28, 18,779.65 and 4,201.00

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Solution

The fourth proportional to 12,518.28, 18,779.65 and 4,201.00 is: 6,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.28 : 18,779.65 = 4,201.00 : x
  2. Step 2: Convert to fraction form
    12,518.28/18,779.65 = 4,201.00/x
  3. Step 3: Cross multiply
    12,518.28x = 18,779.65 × 4,201.00
  4. Step 4: Simplify right side
    12,518.28x = 78,893,252.20
  5. Step 5: Solve for x
    x = 78,893,252.20/12,518.28
  6. Step 6: Final answer
    x = 6,302.24

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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.