Home / 15,714.39-21,684.57-9,253.01

Finding the Fourth Proportional to 15,714.39, 21,684.57 and 9,253.01

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Solution

The fourth proportional to 15,714.39, 21,684.57 and 9,253.01 is: 12,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,714.39 : 21,684.57 = 9,253.01 : x
  2. Step 2: Convert to fraction form
    15,714.39/21,684.57 = 9,253.01/x
  3. Step 3: Cross multiply
    15,714.39x = 21,684.57 × 9,253.01
  4. Step 4: Simplify right side
    15,714.39x = 200,647,543.06
  5. Step 5: Solve for x
    x = 200,647,543.06/15,714.39
  6. Step 6: Final answer
    x = 12,768.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.