Home / 14,065.46-21,070.36-11,435.90

Finding the Fourth Proportional to 14,065.46, 21,070.36 and 11,435.90

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Solution

The fourth proportional to 14,065.46, 21,070.36 and 11,435.90 is: 17,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.46 : 21,070.36 = 11,435.90 : x
  2. Step 2: Convert to fraction form
    14,065.46/21,070.36 = 11,435.90/x
  3. Step 3: Cross multiply
    14,065.46x = 21,070.36 × 11,435.90
  4. Step 4: Simplify right side
    14,065.46x = 240,958,529.92
  5. Step 5: Solve for x
    x = 240,958,529.92/14,065.46
  6. Step 6: Final answer
    x = 17,131.22

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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.