Home / 19,586.30-29,376.40-6,438.58

Finding the Fourth Proportional to 19,586.30, 29,376.40 and 6,438.58

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Solution

The fourth proportional to 19,586.30, 29,376.40 and 6,438.58 is: 9,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.30 : 29,376.40 = 6,438.58 : x
  2. Step 2: Convert to fraction form
    19,586.30/29,376.40 = 6,438.58/x
  3. Step 3: Cross multiply
    19,586.30x = 29,376.40 × 6,438.58
  4. Step 4: Simplify right side
    19,586.30x = 189,142,301.51
  5. Step 5: Solve for x
    x = 189,142,301.51/19,586.30
  6. Step 6: Final answer
    x = 9,656.87

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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.