Home / 18,334.74-25,322.58-12,390.96

Finding the Fourth Proportional to 18,334.74, 25,322.58 and 12,390.96

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Solution

The fourth proportional to 18,334.74, 25,322.58 and 12,390.96 is: 17,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,334.74 : 25,322.58 = 12,390.96 : x
  2. Step 2: Convert to fraction form
    18,334.74/25,322.58 = 12,390.96/x
  3. Step 3: Cross multiply
    18,334.74x = 25,322.58 × 12,390.96
  4. Step 4: Simplify right side
    18,334.74x = 313,771,075.88
  5. Step 5: Solve for x
    x = 313,771,075.88/18,334.74
  6. Step 6: Final answer
    x = 17,113.47

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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.