Home / 19,487.10-29,230.65-6,340.80

Finding the Fourth Proportional to 19,487.10, 29,230.65 and 6,340.80

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Solution

The fourth proportional to 19,487.10, 29,230.65 and 6,340.80 is: 9,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.10 : 29,230.65 = 6,340.80 : x
  2. Step 2: Convert to fraction form
    19,487.10/29,230.65 = 6,340.80/x
  3. Step 3: Cross multiply
    19,487.10x = 29,230.65 × 6,340.80
  4. Step 4: Simplify right side
    19,487.10x = 185,345,705.52
  5. Step 5: Solve for x
    x = 185,345,705.52/19,487.10
  6. Step 6: Final answer
    x = 9,511.20

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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.