Home / 19,649.60-29,479.83-6,511.20

Finding the Fourth Proportional to 19,649.60, 29,479.83 and 6,511.20

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Solution

The fourth proportional to 19,649.60, 29,479.83 and 6,511.20 is: 9,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.60 : 29,479.83 = 6,511.20 : x
  2. Step 2: Convert to fraction form
    19,649.60/29,479.83 = 6,511.20/x
  3. Step 3: Cross multiply
    19,649.60x = 29,479.83 × 6,511.20
  4. Step 4: Simplify right side
    19,649.60x = 191,949,069.10
  5. Step 5: Solve for x
    x = 191,949,069.10/19,649.60
  6. Step 6: Final answer
    x = 9,768.60

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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.