Home / 19,412.01-29,129.30-8,166.53

Finding the Fourth Proportional to 19,412.01, 29,129.30 and 8,166.53

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Solution

The fourth proportional to 19,412.01, 29,129.30 and 8,166.53 is: 12,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.01 : 29,129.30 = 8,166.53 : x
  2. Step 2: Convert to fraction form
    19,412.01/29,129.30 = 8,166.53/x
  3. Step 3: Cross multiply
    19,412.01x = 29,129.30 × 8,166.53
  4. Step 4: Simplify right side
    19,412.01x = 237,885,115.85
  5. Step 5: Solve for x
    x = 237,885,115.85/19,412.01
  6. Step 6: Final answer
    x = 12,254.53

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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.