Home / 12,291.46-18,439.02-4,393.36

Finding the Fourth Proportional to 12,291.46, 18,439.02 and 4,393.36

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Solution

The fourth proportional to 12,291.46, 18,439.02 and 4,393.36 is: 6,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.46 : 18,439.02 = 4,393.36 : x
  2. Step 2: Convert to fraction form
    12,291.46/18,439.02 = 4,393.36/x
  3. Step 3: Cross multiply
    12,291.46x = 18,439.02 × 4,393.36
  4. Step 4: Simplify right side
    12,291.46x = 81,009,252.91
  5. Step 5: Solve for x
    x = 81,009,252.91/12,291.46
  6. Step 6: Final answer
    x = 6,590.69

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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.