Home / 19,586.18-29,379.95-6,439.58

Finding the Fourth Proportional to 19,586.18, 29,379.95 and 6,439.58

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Solution

The fourth proportional to 19,586.18, 29,379.95 and 6,439.58 is: 9,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.18 : 29,379.95 = 6,439.58 : x
  2. Step 2: Convert to fraction form
    19,586.18/29,379.95 = 6,439.58/x
  3. Step 3: Cross multiply
    19,586.18x = 29,379.95 × 6,439.58
  4. Step 4: Simplify right side
    19,586.18x = 189,194,438.18
  5. Step 5: Solve for x
    x = 189,194,438.18/19,586.18
  6. Step 6: Final answer
    x = 9,659.59

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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.