Home / 15,790.43-21,790.46-9,075.88

Finding the Fourth Proportional to 15,790.43, 21,790.46 and 9,075.88

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Solution

The fourth proportional to 15,790.43, 21,790.46 and 9,075.88 is: 12,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.43 : 21,790.46 = 9,075.88 : x
  2. Step 2: Convert to fraction form
    15,790.43/21,790.46 = 9,075.88/x
  3. Step 3: Cross multiply
    15,790.43x = 21,790.46 × 9,075.88
  4. Step 4: Simplify right side
    15,790.43x = 197,767,568.32
  5. Step 5: Solve for x
    x = 197,767,568.32/15,790.43
  6. Step 6: Final answer
    x = 12,524.52

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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.