Home / 19,127.20-28,690.56-5,276.08

Finding the Fourth Proportional to 19,127.20, 28,690.56 and 5,276.08

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Solution

The fourth proportional to 19,127.20, 28,690.56 and 5,276.08 is: 7,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.20 : 28,690.56 = 5,276.08 : x
  2. Step 2: Convert to fraction form
    19,127.20/28,690.56 = 5,276.08/x
  3. Step 3: Cross multiply
    19,127.20x = 28,690.56 × 5,276.08
  4. Step 4: Simplify right side
    19,127.20x = 151,373,689.80
  5. Step 5: Solve for x
    x = 151,373,689.80/19,127.20
  6. Step 6: Final answer
    x = 7,914.05

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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.