Home / 14,105.19-21,155.04-5,340.79

Finding the Fourth Proportional to 14,105.19, 21,155.04 and 5,340.79

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Solution

The fourth proportional to 14,105.19, 21,155.04 and 5,340.79 is: 8,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.19 : 21,155.04 = 5,340.79 : x
  2. Step 2: Convert to fraction form
    14,105.19/21,155.04 = 5,340.79/x
  3. Step 3: Cross multiply
    14,105.19x = 21,155.04 × 5,340.79
  4. Step 4: Simplify right side
    14,105.19x = 112,984,626.08
  5. Step 5: Solve for x
    x = 112,984,626.08/14,105.19
  6. Step 6: Final answer
    x = 8,010.15

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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.