Home / 10,985.30-15,160.79-6,270.29

Finding the Fourth Proportional to 10,985.30, 15,160.79 and 6,270.29

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Solution

The fourth proportional to 10,985.30, 15,160.79 and 6,270.29 is: 8,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.30 : 15,160.79 = 6,270.29 : x
  2. Step 2: Convert to fraction form
    10,985.30/15,160.79 = 6,270.29/x
  3. Step 3: Cross multiply
    10,985.30x = 15,160.79 × 6,270.29
  4. Step 4: Simplify right side
    10,985.30x = 95,062,489.80
  5. Step 5: Solve for x
    x = 95,062,489.80/10,985.30
  6. Step 6: Final answer
    x = 8,653.61

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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.