Home / 18,977.49-28,445.99-9,624.42

Finding the Fourth Proportional to 18,977.49, 28,445.99 and 9,624.42

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Solution

The fourth proportional to 18,977.49, 28,445.99 and 9,624.42 is: 14,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.49 : 28,445.99 = 9,624.42 : x
  2. Step 2: Convert to fraction form
    18,977.49/28,445.99 = 9,624.42/x
  3. Step 3: Cross multiply
    18,977.49x = 28,445.99 × 9,624.42
  4. Step 4: Simplify right side
    18,977.49x = 273,776,106.95
  5. Step 5: Solve for x
    x = 273,776,106.95/18,977.49
  6. Step 6: Final answer
    x = 14,426.36

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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.