Home / 14,808.48-20,439.33-8,438.82

Finding the Fourth Proportional to 14,808.48, 20,439.33 and 8,438.82

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Solution

The fourth proportional to 14,808.48, 20,439.33 and 8,438.82 is: 11,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,808.48 : 20,439.33 = 8,438.82 : x
  2. Step 2: Convert to fraction form
    14,808.48/20,439.33 = 8,438.82/x
  3. Step 3: Cross multiply
    14,808.48x = 20,439.33 × 8,438.82
  4. Step 4: Simplify right side
    14,808.48x = 172,483,826.79
  5. Step 5: Solve for x
    x = 172,483,826.79/14,808.48
  6. Step 6: Final answer
    x = 11,647.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.