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Finding the Fourth Proportional to 7,009.16, 10,514.10 and 1,815.08

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Solution

The fourth proportional to 7,009.16, 10,514.10 and 1,815.08 is: 2,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.16 : 10,514.10 = 1,815.08 : x
  2. Step 2: Convert to fraction form
    7,009.16/10,514.10 = 1,815.08/x
  3. Step 3: Cross multiply
    7,009.16x = 10,514.10 × 1,815.08
  4. Step 4: Simplify right side
    7,009.16x = 19,083,932.63
  5. Step 5: Solve for x
    x = 19,083,932.63/7,009.16
  6. Step 6: Final answer
    x = 2,722.71

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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.