Home / 13,649.76-20,470.86-5,856.84

Finding the Fourth Proportional to 13,649.76, 20,470.86 and 5,856.84

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Solution

The fourth proportional to 13,649.76, 20,470.86 and 5,856.84 is: 8,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.76 : 20,470.86 = 5,856.84 : x
  2. Step 2: Convert to fraction form
    13,649.76/20,470.86 = 5,856.84/x
  3. Step 3: Cross multiply
    13,649.76x = 20,470.86 × 5,856.84
  4. Step 4: Simplify right side
    13,649.76x = 119,894,551.68
  5. Step 5: Solve for x
    x = 119,894,551.68/13,649.76
  6. Step 6: Final answer
    x = 8,783.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.