Home / 14,814.90-20,446.65-9,075.78

Finding the Fourth Proportional to 14,814.90, 20,446.65 and 9,075.78

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Solution

The fourth proportional to 14,814.90, 20,446.65 and 9,075.78 is: 12,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,814.90 : 20,446.65 = 9,075.78 : x
  2. Step 2: Convert to fraction form
    14,814.90/20,446.65 = 9,075.78/x
  3. Step 3: Cross multiply
    14,814.90x = 20,446.65 × 9,075.78
  4. Step 4: Simplify right side
    14,814.90x = 185,569,297.14
  5. Step 5: Solve for x
    x = 185,569,297.14/14,814.90
  6. Step 6: Final answer
    x = 12,525.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.