Home / 14,379.80-21,569.70-9,714.20

Finding the Fourth Proportional to 14,379.80, 21,569.70 and 9,714.20

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Solution

The fourth proportional to 14,379.80, 21,569.70 and 9,714.20 is: 14,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.80 : 21,569.70 = 9,714.20 : x
  2. Step 2: Convert to fraction form
    14,379.80/21,569.70 = 9,714.20/x
  3. Step 3: Cross multiply
    14,379.80x = 21,569.70 × 9,714.20
  4. Step 4: Simplify right side
    14,379.80x = 209,532,379.74
  5. Step 5: Solve for x
    x = 209,532,379.74/14,379.80
  6. Step 6: Final answer
    x = 14,571.30

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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.