Home / 14,066.87-21,070.53-9,121.82

Finding the Fourth Proportional to 14,066.87, 21,070.53 and 9,121.82

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Solution

The fourth proportional to 14,066.87, 21,070.53 and 9,121.82 is: 13,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,066.87 : 21,070.53 = 9,121.82 : x
  2. Step 2: Convert to fraction form
    14,066.87/21,070.53 = 9,121.82/x
  3. Step 3: Cross multiply
    14,066.87x = 21,070.53 × 9,121.82
  4. Step 4: Simplify right side
    14,066.87x = 192,201,476.61
  5. Step 5: Solve for x
    x = 192,201,476.61/14,066.87
  6. Step 6: Final answer
    x = 13,663.42

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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.