Home / 12,989.05-19,482.20-4,555.43

Finding the Fourth Proportional to 12,989.05, 19,482.20 and 4,555.43

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Solution

The fourth proportional to 12,989.05, 19,482.20 and 4,555.43 is: 6,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989.05 : 19,482.20 = 4,555.43 : x
  2. Step 2: Convert to fraction form
    12,989.05/19,482.20 = 4,555.43/x
  3. Step 3: Cross multiply
    12,989.05x = 19,482.20 × 4,555.43
  4. Step 4: Simplify right side
    12,989.05x = 88,749,798.35
  5. Step 5: Solve for x
    x = 88,749,798.35/12,989.05
  6. Step 6: Final answer
    x = 6,832.66

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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.