Home / 12,779.17-19,158.28-5,757.08

Finding the Fourth Proportional to 12,779.17, 19,158.28 and 5,757.08

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Solution

The fourth proportional to 12,779.17, 19,158.28 and 5,757.08 is: 8,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.17 : 19,158.28 = 5,757.08 : x
  2. Step 2: Convert to fraction form
    12,779.17/19,158.28 = 5,757.08/x
  3. Step 3: Cross multiply
    12,779.17x = 19,158.28 × 5,757.08
  4. Step 4: Simplify right side
    12,779.17x = 110,295,750.62
  5. Step 5: Solve for x
    x = 110,295,750.62/12,779.17
  6. Step 6: Final answer
    x = 8,630.90

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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.