Home / 7,779.32-11,663.47-3,614.90

Finding the Fourth Proportional to 7,779.32, 11,663.47 and 3,614.90

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Solution

The fourth proportional to 7,779.32, 11,663.47 and 3,614.90 is: 5,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.32 : 11,663.47 = 3,614.90 : x
  2. Step 2: Convert to fraction form
    7,779.32/11,663.47 = 3,614.90/x
  3. Step 3: Cross multiply
    7,779.32x = 11,663.47 × 3,614.90
  4. Step 4: Simplify right side
    7,779.32x = 42,162,210.35
  5. Step 5: Solve for x
    x = 42,162,210.35/7,779.32
  6. Step 6: Final answer
    x = 5,419.78

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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.