Home / 10,945.26-15,105.57-6,470.46

Finding the Fourth Proportional to 10,945.26, 15,105.57 and 6,470.46

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Solution

The fourth proportional to 10,945.26, 15,105.57 and 6,470.46 is: 8,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.26 : 15,105.57 = 6,470.46 : x
  2. Step 2: Convert to fraction form
    10,945.26/15,105.57 = 6,470.46/x
  3. Step 3: Cross multiply
    10,945.26x = 15,105.57 × 6,470.46
  4. Step 4: Simplify right side
    10,945.26x = 97,739,986.46
  5. Step 5: Solve for x
    x = 97,739,986.46/10,945.26
  6. Step 6: Final answer
    x = 8,929.89

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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.