Home / 12,843.04-19,172.28-12,275.68

Finding the Fourth Proportional to 12,843.04, 19,172.28 and 12,275.68

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Solution

The fourth proportional to 12,843.04, 19,172.28 and 12,275.68 is: 18,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.04 : 19,172.28 = 12,275.68 : x
  2. Step 2: Convert to fraction form
    12,843.04/19,172.28 = 12,275.68/x
  3. Step 3: Cross multiply
    12,843.04x = 19,172.28 × 12,275.68
  4. Step 4: Simplify right side
    12,843.04x = 235,352,774.15
  5. Step 5: Solve for x
    x = 235,352,774.15/12,843.04
  6. Step 6: Final answer
    x = 18,325.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.