Home / 11,470.74-15,824.26-7,219.86

Finding the Fourth Proportional to 11,470.74, 15,824.26 and 7,219.86

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Solution

The fourth proportional to 11,470.74, 15,824.26 and 7,219.86 is: 9,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.74 : 15,824.26 = 7,219.86 : x
  2. Step 2: Convert to fraction form
    11,470.74/15,824.26 = 7,219.86/x
  3. Step 3: Cross multiply
    11,470.74x = 15,824.26 × 7,219.86
  4. Step 4: Simplify right side
    11,470.74x = 114,248,941.80
  5. Step 5: Solve for x
    x = 114,248,941.80/11,470.74
  6. Step 6: Final answer
    x = 9,960.03

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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.