Home / 12,402.05-18,603.23-3,637.15

Finding the Fourth Proportional to 12,402.05, 18,603.23 and 3,637.15

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Solution

The fourth proportional to 12,402.05, 18,603.23 and 3,637.15 is: 5,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.05 : 18,603.23 = 3,637.15 : x
  2. Step 2: Convert to fraction form
    12,402.05/18,603.23 = 3,637.15/x
  3. Step 3: Cross multiply
    12,402.05x = 18,603.23 × 3,637.15
  4. Step 4: Simplify right side
    12,402.05x = 67,662,700.58
  5. Step 5: Solve for x
    x = 67,662,700.58/12,402.05
  6. Step 6: Final answer
    x = 5,455.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.