Home / 14,117.46-21,172.80-4,755.06

Finding the Fourth Proportional to 14,117.46, 21,172.80 and 4,755.06

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Solution

The fourth proportional to 14,117.46, 21,172.80 and 4,755.06 is: 7,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.46 : 21,172.80 = 4,755.06 : x
  2. Step 2: Convert to fraction form
    14,117.46/21,172.80 = 4,755.06/x
  3. Step 3: Cross multiply
    14,117.46x = 21,172.80 × 4,755.06
  4. Step 4: Simplify right side
    14,117.46x = 100,677,934.37
  5. Step 5: Solve for x
    x = 100,677,934.37/14,117.46
  6. Step 6: Final answer
    x = 7,131.45

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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.