Home / 14,612.28-20,160.01-8,320.20

Finding the Fourth Proportional to 14,612.28, 20,160.01 and 8,320.20

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Solution

The fourth proportional to 14,612.28, 20,160.01 and 8,320.20 is: 11,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.28 : 20,160.01 = 8,320.20 : x
  2. Step 2: Convert to fraction form
    14,612.28/20,160.01 = 8,320.20/x
  3. Step 3: Cross multiply
    14,612.28x = 20,160.01 × 8,320.20
  4. Step 4: Simplify right side
    14,612.28x = 167,735,315.20
  5. Step 5: Solve for x
    x = 167,735,315.20/14,612.28
  6. Step 6: Final answer
    x = 11,479.07

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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.