Home / 18,425.34-25,434.54-12,465.09

Finding the Fourth Proportional to 18,425.34, 25,434.54 and 12,465.09

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Solution

The fourth proportional to 18,425.34, 25,434.54 and 12,465.09 is: 17,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.34 : 25,434.54 = 12,465.09 : x
  2. Step 2: Convert to fraction form
    18,425.34/25,434.54 = 12,465.09/x
  3. Step 3: Cross multiply
    18,425.34x = 25,434.54 × 12,465.09
  4. Step 4: Simplify right side
    18,425.34x = 317,043,830.21
  5. Step 5: Solve for x
    x = 317,043,830.21/18,425.34
  6. Step 6: Final answer
    x = 17,206.95

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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.