Home / 13,068.21-19,698.76-12,306.15

Finding the Fourth Proportional to 13,068.21, 19,698.76 and 12,306.15

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Solution

The fourth proportional to 13,068.21, 19,698.76 and 12,306.15 is: 18,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.21 : 19,698.76 = 12,306.15 : x
  2. Step 2: Convert to fraction form
    13,068.21/19,698.76 = 12,306.15/x
  3. Step 3: Cross multiply
    13,068.21x = 19,698.76 × 12,306.15
  4. Step 4: Simplify right side
    13,068.21x = 242,415,895.37
  5. Step 5: Solve for x
    x = 242,415,895.37/13,068.21
  6. Step 6: Final answer
    x = 18,550.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.