Home / 18,571.04-25,613.74-12,905.70

Finding the Fourth Proportional to 18,571.04, 25,613.74 and 12,905.70

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Solution

The fourth proportional to 18,571.04, 25,613.74 and 12,905.70 is: 17,799.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.04 : 25,613.74 = 12,905.70 : x
  2. Step 2: Convert to fraction form
    18,571.04/25,613.74 = 12,905.70/x
  3. Step 3: Cross multiply
    18,571.04x = 25,613.74 × 12,905.70
  4. Step 4: Simplify right side
    18,571.04x = 330,563,244.32
  5. Step 5: Solve for x
    x = 330,563,244.32/18,571.04
  6. Step 6: Final answer
    x = 17,799.93

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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.