Home / 12,561.42-18,841.32-4,770.03

Finding the Fourth Proportional to 12,561.42, 18,841.32 and 4,770.03

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Solution

The fourth proportional to 12,561.42, 18,841.32 and 4,770.03 is: 7,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.42 : 18,841.32 = 4,770.03 : x
  2. Step 2: Convert to fraction form
    12,561.42/18,841.32 = 4,770.03/x
  3. Step 3: Cross multiply
    12,561.42x = 18,841.32 × 4,770.03
  4. Step 4: Simplify right side
    12,561.42x = 89,873,661.64
  5. Step 5: Solve for x
    x = 89,873,661.64/12,561.42
  6. Step 6: Final answer
    x = 7,154.74

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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.