Home / 16,688.28-23,027.28-10,720.74

Finding the Fourth Proportional to 16,688.28, 23,027.28 and 10,720.74

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Solution

The fourth proportional to 16,688.28, 23,027.28 and 10,720.74 is: 14,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.28 : 23,027.28 = 10,720.74 : x
  2. Step 2: Convert to fraction form
    16,688.28/23,027.28 = 10,720.74/x
  3. Step 3: Cross multiply
    16,688.28x = 23,027.28 × 10,720.74
  4. Step 4: Simplify right side
    16,688.28x = 246,869,481.79
  5. Step 5: Solve for x
    x = 246,869,481.79/16,688.28
  6. Step 6: Final answer
    x = 14,792.99

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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.