Home / 12,607.40-18,908.43-4,287.26

Finding the Fourth Proportional to 12,607.40, 18,908.43 and 4,287.26

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Solution

The fourth proportional to 12,607.40, 18,908.43 and 4,287.26 is: 6,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.40 : 18,908.43 = 4,287.26 : x
  2. Step 2: Convert to fraction form
    12,607.40/18,908.43 = 4,287.26/x
  3. Step 3: Cross multiply
    12,607.40x = 18,908.43 × 4,287.26
  4. Step 4: Simplify right side
    12,607.40x = 81,065,355.60
  5. Step 5: Solve for x
    x = 81,065,355.60/12,607.40
  6. Step 6: Final answer
    x = 6,429.98

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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.