Home / 10,985.73-15,161.40-6,270.72

Finding the Fourth Proportional to 10,985.73, 15,161.40 and 6,270.72

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Solution

The fourth proportional to 10,985.73, 15,161.40 and 6,270.72 is: 8,654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.73 : 15,161.40 = 6,270.72 : x
  2. Step 2: Convert to fraction form
    10,985.73/15,161.40 = 6,270.72/x
  3. Step 3: Cross multiply
    10,985.73x = 15,161.40 × 6,270.72
  4. Step 4: Simplify right side
    10,985.73x = 95,072,894.21
  5. Step 5: Solve for x
    x = 95,072,894.21/10,985.73
  6. Step 6: Final answer
    x = 8,654.22

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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.