Home / 12,535.47-18,805.37-4,216.29

Finding the Fourth Proportional to 12,535.47, 18,805.37 and 4,216.29

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Solution

The fourth proportional to 12,535.47, 18,805.37 and 4,216.29 is: 6,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.47 : 18,805.37 = 4,216.29 : x
  2. Step 2: Convert to fraction form
    12,535.47/18,805.37 = 4,216.29/x
  3. Step 3: Cross multiply
    12,535.47x = 18,805.37 × 4,216.29
  4. Step 4: Simplify right side
    12,535.47x = 79,288,872.40
  5. Step 5: Solve for x
    x = 79,288,872.40/12,535.47
  6. Step 6: Final answer
    x = 6,325.16

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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.