Home / 7,147.35-9,860.01-4,630.28

Finding the Fourth Proportional to 7,147.35, 9,860.01 and 4,630.28

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Solution

The fourth proportional to 7,147.35, 9,860.01 and 4,630.28 is: 6,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.35 : 9,860.01 = 4,630.28 : x
  2. Step 2: Convert to fraction form
    7,147.35/9,860.01 = 4,630.28/x
  3. Step 3: Cross multiply
    7,147.35x = 9,860.01 × 4,630.28
  4. Step 4: Simplify right side
    7,147.35x = 45,654,557.80
  5. Step 5: Solve for x
    x = 45,654,557.80/7,147.35
  6. Step 6: Final answer
    x = 6,387.62

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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.