Home / 14,720.16-20,313.66-8,005.68

Finding the Fourth Proportional to 14,720.16, 20,313.66 and 8,005.68

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Solution

The fourth proportional to 14,720.16, 20,313.66 and 8,005.68 is: 11,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.16 : 20,313.66 = 8,005.68 : x
  2. Step 2: Convert to fraction form
    14,720.16/20,313.66 = 8,005.68/x
  3. Step 3: Cross multiply
    14,720.16x = 20,313.66 × 8,005.68
  4. Step 4: Simplify right side
    14,720.16x = 162,624,661.59
  5. Step 5: Solve for x
    x = 162,624,661.59/14,720.16
  6. Step 6: Final answer
    x = 11,047.75

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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.