Home / 19,810.08-29,715.12-8,123.04

Finding the Fourth Proportional to 19,810.08, 29,715.12 and 8,123.04

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Solution

The fourth proportional to 19,810.08, 29,715.12 and 8,123.04 is: 12,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.08 : 29,715.12 = 8,123.04 : x
  2. Step 2: Convert to fraction form
    19,810.08/29,715.12 = 8,123.04/x
  3. Step 3: Cross multiply
    19,810.08x = 29,715.12 × 8,123.04
  4. Step 4: Simplify right side
    19,810.08x = 241,377,108.36
  5. Step 5: Solve for x
    x = 241,377,108.36/19,810.08
  6. Step 6: Final answer
    x = 12,184.56

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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.