Home / 12,465.88-18,695.60-3,698.76

Finding the Fourth Proportional to 12,465.88, 18,695.60 and 3,698.76

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Solution

The fourth proportional to 12,465.88, 18,695.60 and 3,698.76 is: 5,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.88 : 18,695.60 = 3,698.76 : x
  2. Step 2: Convert to fraction form
    12,465.88/18,695.60 = 3,698.76/x
  3. Step 3: Cross multiply
    12,465.88x = 18,695.60 × 3,698.76
  4. Step 4: Simplify right side
    12,465.88x = 69,150,537.46
  5. Step 5: Solve for x
    x = 69,150,537.46/12,465.88
  6. Step 6: Final answer
    x = 5,547.18

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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.