Home / 12,290.46-18,437.52-4,392.36

Finding the Fourth Proportional to 12,290.46, 18,437.52 and 4,392.36

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Solution

The fourth proportional to 12,290.46, 18,437.52 and 4,392.36 is: 6,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.46 : 18,437.52 = 4,392.36 : x
  2. Step 2: Convert to fraction form
    12,290.46/18,437.52 = 4,392.36/x
  3. Step 3: Cross multiply
    12,290.46x = 18,437.52 × 4,392.36
  4. Step 4: Simplify right side
    12,290.46x = 80,984,225.35
  5. Step 5: Solve for x
    x = 80,984,225.35/12,290.46
  6. Step 6: Final answer
    x = 6,589.19

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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.