Home / 7,380.64-10,186-5,514.40

Finding the Fourth Proportional to 7,380.64, 10,186 and 5,514.40

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Solution

The fourth proportional to 7,380.64, 10,186 and 5,514.40 is: 7,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.64 : 10,186 = 5,514.40 : x
  2. Step 2: Convert to fraction form
    7,380.64/10,186 = 5,514.40/x
  3. Step 3: Cross multiply
    7,380.64x = 10,186 × 5,514.40
  4. Step 4: Simplify right side
    7,380.64x = 56,169,678.40
  5. Step 5: Solve for x
    x = 56,169,678.40/7,380.64
  6. Step 6: Final answer
    x = 7,610.41

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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.