Home / 19,586.48-29,381.56-6,438.88

Finding the Fourth Proportional to 19,586.48, 29,381.56 and 6,438.88

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Solution

The fourth proportional to 19,586.48, 29,381.56 and 6,438.88 is: 9,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.48 : 29,381.56 = 6,438.88 : x
  2. Step 2: Convert to fraction form
    19,586.48/29,381.56 = 6,438.88/x
  3. Step 3: Cross multiply
    19,586.48x = 29,381.56 × 6,438.88
  4. Step 4: Simplify right side
    19,586.48x = 189,184,339.05
  5. Step 5: Solve for x
    x = 189,184,339.05/19,586.48
  6. Step 6: Final answer
    x = 9,658.92

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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.