Home / 10,933.38-15,090-6,456.84

Finding the Fourth Proportional to 10,933.38, 15,090 and 6,456.84

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Solution

The fourth proportional to 10,933.38, 15,090 and 6,456.84 is: 8,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.38 : 15,090 = 6,456.84 : x
  2. Step 2: Convert to fraction form
    10,933.38/15,090 = 6,456.84/x
  3. Step 3: Cross multiply
    10,933.38x = 15,090 × 6,456.84
  4. Step 4: Simplify right side
    10,933.38x = 97,433,715.60
  5. Step 5: Solve for x
    x = 97,433,715.60/10,933.38
  6. Step 6: Final answer
    x = 8,911.58

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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.