Home / 19,215.12-28,820.20-6,068.80

Finding the Fourth Proportional to 19,215.12, 28,820.20 and 6,068.80

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Solution

The fourth proportional to 19,215.12, 28,820.20 and 6,068.80 is: 9,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.12 : 28,820.20 = 6,068.80 : x
  2. Step 2: Convert to fraction form
    19,215.12/28,820.20 = 6,068.80/x
  3. Step 3: Cross multiply
    19,215.12x = 28,820.20 × 6,068.80
  4. Step 4: Simplify right side
    19,215.12x = 174,904,029.76
  5. Step 5: Solve for x
    x = 174,904,029.76/19,215.12
  6. Step 6: Final answer
    x = 9,102.42

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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.