Home / 19,081.12-28,621.68-8,704.48

Finding the Fourth Proportional to 19,081.12, 28,621.68 and 8,704.48

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Solution

The fourth proportional to 19,081.12, 28,621.68 and 8,704.48 is: 13,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.12 : 28,621.68 = 8,704.48 : x
  2. Step 2: Convert to fraction form
    19,081.12/28,621.68 = 8,704.48/x
  3. Step 3: Cross multiply
    19,081.12x = 28,621.68 × 8,704.48
  4. Step 4: Simplify right side
    19,081.12x = 249,136,841.13
  5. Step 5: Solve for x
    x = 249,136,841.13/19,081.12
  6. Step 6: Final answer
    x = 13,056.72

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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.