Home / 19,371.94-29,070.18-8,278.70

Finding the Fourth Proportional to 19,371.94, 29,070.18 and 8,278.70

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Solution

The fourth proportional to 19,371.94, 29,070.18 and 8,278.70 is: 12,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.94 : 29,070.18 = 8,278.70 : x
  2. Step 2: Convert to fraction form
    19,371.94/29,070.18 = 8,278.70/x
  3. Step 3: Cross multiply
    19,371.94x = 29,070.18 × 8,278.70
  4. Step 4: Simplify right side
    19,371.94x = 240,663,299.17
  5. Step 5: Solve for x
    x = 240,663,299.17/19,371.94
  6. Step 6: Final answer
    x = 12,423.29

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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.